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Eight persons E, F, G, H, P, Q, R and S are sitting around a square table in such a way that four of them sit at four corners facing towards center and like some fruits, and rest four who sits at the middle of the side, are facing outside and likes some colours. One of the person in the group likes blue colour. Only two persons sit between G and P who like yellow colour. The one who likes grapes sits third to the left of the one who likes green colour. E likes apple and sits second to the right of the one who sits third to the left of Q. The one who likes grapes is not an immediate neighbour of P. The one who likes white colour sits immediate right of the one who likes banana. Q does not like green colour. H sits second to the left to the one who likes Guava who sits third to the right of S. R likes a colour.
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आठ व्यक्ति E, F, G, H, P, Q, R और S एक वर्गाकार मेज के चारो ओर इस प्रकार बैठे हैं जिस से उनमें से चार व्यक्ति जो कोनों पर बैठे हैं वे केंद्र की ओर उन्मुख हैं और उन्हें कुछ फल पसंद हैं और शेष चार जो भुजाओं के मध्य में बैठे हैं वे बाहर की ओर उन्मुख हैं और उन्हें रंग पसंद हैं. समूह में से किसी एक व्यक्ति को नीला रंग पसंद है. केवल दो व्यक्ति G और P जिसे पीला रंग पसंद है उनके मध्य बैठे हैं. वह व्यक्ति जिसे अंगूर पसंद है वह हरा पसंद करने वाले के बाएं से तीसरे स्थान पर बैठा है. E को सेब पसंद है और वह Q के बाएं से तीसरे स्थान पर बैठे व्यक्ति के दायें से दूसरे स्थान पर बैठा है. वह व्यक्ति जिसे अंगूर पसंद हैं वह P का निकटतम पडोसी नहीं है. वह व्यक्ति जिसे सफ़ेद रंग पसंद है वह केला पसंद करने वाले व्यक्ति के ठीक दायें बैठा है. Q को हरा रंग पसंद नहीं है. H उस व्यक्ति के बाएं से दूसरे स्थान पर बैठा है जिसे अमरुद पसंद है जो S के दायें से तीसरे स्थान पर बैठा है. R को रंग पसंद है.
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Eight persons E, F, G, H, P, Q, R and S are sitting around a square table in such a way that four of them sit at four corners facing towards center and like some fruits, and rest four who sits at the middle of the side, are facing outside and likes some colours. One of the person in the group likes blue colour. Only two persons sit between G and P who like yellow colour. The one who likes grapes sits third to the left of the one who likes green colour. E likes apple and sits second to the right of the one who sits third to the left of Q. The one who likes grapes is not an immediate neighbour of P. The one who likes white colour sits immediate right of the one who likes banana. Q does not like green colour. H sits second to the left to the one who likes Guava who sits third to the right of S. R likes a colour.
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आठ व्यक्ति E, F, G, H, P, Q, R और S एक वर्गाकार मेज के चारो ओर इस प्रकार बैठे हैं जिस से उनमें से चार व्यक्ति जो कोनों पर बैठे हैं वे केंद्र की ओर उन्मुख हैं और उन्हें कुछ फल पसंद हैं और शेष चार जो भुजाओं के मध्य में बैठे हैं वे बाहर की ओर उन्मुख हैं और उन्हें रंग पसंद हैं. समूह में से किसी एक व्यक्ति को नीला रंग पसंद है. केवल दो व्यक्ति G और P जिसे पीला रंग पसंद है उनके मध्य बैठे हैं. वह व्यक्ति जिसे अंगूर पसंद है वह हरा पसंद करने वाले के बाएं से तीसरे स्थान पर बैठा है. E को सेब पसंद है और वह Q के बाएं से तीसरे स्थान पर बैठे व्यक्ति के दायें से दूसरे स्थान पर बैठा है. वह व्यक्ति जिसे अंगूर पसंद हैं वह P का निकटतम पडोसी नहीं है. वह व्यक्ति जिसे सफ़ेद रंग पसंद है वह केला पसंद करने वाले व्यक्ति के ठीक दायें बैठा है. Q को हरा रंग पसंद नहीं है. H उस व्यक्ति के बाएं से दूसरे स्थान पर बैठा है जिसे अमरुद पसंद है जो S के दायें से तीसरे स्थान पर बैठा है. R को रंग पसंद है.
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●Good Morning● 20-2-2021
◆Daily The Hindu Vocabulary◆
1. INTRANSIGENT (ADJECTIVE):(हठी): uncompromising
Synonyms: inflexible, unbending
Antonyms: compliant
Example Sentence:Her father had tried persuasion, but she was intransigent.
2. CUTTING-EDGE (ADJECTIVE): (अत्यधिक उन्नत): highly advanced
Synonyms: innovative, pioneering
Antonyms: outdated
Example Sentence:The firm introduced some cutting-edge technology.
3. ANGST (NOUN): (उत्कंठा): anxiety
Synonyms: fear, dread
Antonyms: calmness
Example Sentence:The middle classes go through existential angst.
4. ACCREDIT (VERB): (मान्य करना): recognize
Synonyms: license, authorize
Antonyms: ban
Example Sentence:Institutions that do not meet the standards will not be accredited for teacher training.
5. INDIGENOUS (NOUN): (स्वदेशी): native
Synonyms: aboriginal, local
Antonyms: expatriate
Example Sentence:The most indigenous inhabitants were the American Indians.
6. SCANDALOUS (ADJECTIVE): (अपमानपूर्ण): discreditable
Synonyms: disreputable, dishonourable
Antonyms: seemly
Example Sentence:The magazine published scandalous pictures of the movie star.
7. ACQUIT (VERB): (बरी करना): absolve
Synonyms: clear, exonerate
Antonyms: convict
Example Sentence:One was brought to trial on a charge of affray and was acquitted.
8. RETROGADE (ADJECTIVE): (प्रतिगामी): regressive
Synonyms: negative, downhill
Antonyms: positive
Example Sentence:To go back on the progress that has been made would be a retrograde step.
9. PERSEVERANCE (NOUN): (दृढ़ता): persistence
Synonyms: tenacity, determination
Antonyms: irresolution
Example Sentence:His perseverance with the technique illustrates his single-mindedness.
10. BANKRUPT (ADJECTIVE): (दिवालिया): insolvent
Synonyms: bankrupted, failed
Antonyms: solvent
Example Sentence:His father went bankrupt and the family had to sell their home.
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◆Daily The Hindu Vocabulary◆
1. INTRANSIGENT (ADJECTIVE):(हठी): uncompromising
Synonyms: inflexible, unbending
Antonyms: compliant
Example Sentence:Her father had tried persuasion, but she was intransigent.
2. CUTTING-EDGE (ADJECTIVE): (अत्यधिक उन्नत): highly advanced
Synonyms: innovative, pioneering
Antonyms: outdated
Example Sentence:The firm introduced some cutting-edge technology.
3. ANGST (NOUN): (उत्कंठा): anxiety
Synonyms: fear, dread
Antonyms: calmness
Example Sentence:The middle classes go through existential angst.
4. ACCREDIT (VERB): (मान्य करना): recognize
Synonyms: license, authorize
Antonyms: ban
Example Sentence:Institutions that do not meet the standards will not be accredited for teacher training.
5. INDIGENOUS (NOUN): (स्वदेशी): native
Synonyms: aboriginal, local
Antonyms: expatriate
Example Sentence:The most indigenous inhabitants were the American Indians.
6. SCANDALOUS (ADJECTIVE): (अपमानपूर्ण): discreditable
Synonyms: disreputable, dishonourable
Antonyms: seemly
Example Sentence:The magazine published scandalous pictures of the movie star.
7. ACQUIT (VERB): (बरी करना): absolve
Synonyms: clear, exonerate
Antonyms: convict
Example Sentence:One was brought to trial on a charge of affray and was acquitted.
8. RETROGADE (ADJECTIVE): (प्रतिगामी): regressive
Synonyms: negative, downhill
Antonyms: positive
Example Sentence:To go back on the progress that has been made would be a retrograde step.
9. PERSEVERANCE (NOUN): (दृढ़ता): persistence
Synonyms: tenacity, determination
Antonyms: irresolution
Example Sentence:His perseverance with the technique illustrates his single-mindedness.
10. BANKRUPT (ADJECTIVE): (दिवालिया): insolvent
Synonyms: bankrupted, failed
Antonyms: solvent
Example Sentence:His father went bankrupt and the family had to sell their home.
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🍏Jan Dhan Yojana (Overdraft),
🍏Kisan Credit Card,
🍏Ramanujam Prize,
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🍏RBI Highest Denomination Note,
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Following table shows the total number of passengers travelled in different trains and the ratio of total number of passengers travelled in different coaches and the percentage of male, female and children travelled in the train also given.
Note:
AC – Air conditioning
Sleeper – Sleeper coach
UR – Unreserved
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Note:
AC – Air conditioning
Sleeper – Sleeper coach
UR – Unreserved
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1) Total number of men travelled in Chennai – Bangalore and Delhi – Hyderabad train is approximately what percentage of total number of women travelled in Coimbatore – Kerala and Mumbai – Goa train?
a) 120 %
b) 105 %
c) 135 %
d) 150 %
e) 90 %
2) Find the total number of children travelled in all the given trains together?
a) 1194
b) 1568
c) 1826
d) 2192
e) None of these
3) Find the ratio between the total number of passengers travelled in AC coach to that of UR coach of all the given trains together?
a) 15: 37
b) 33: 58
c) 52: 85
d) 27: 43
e) None of these
4) Find the difference between the total number of passengers travelled in Sleeper coach in the trains Chennai – Bangalore, Delhi – Hyderabad and Kolkata – Chennai together to that of the total number of passengers travelled in AC and UR coach together in the trains Coimbatore – Kerala and Mumbai – Goa together?
a) 1325
b) 1150
c) 1580
d) 1775
e) None of these
5) In which of the following trains, the most number of passengers travelled in Sleeper coach?
a) Mumbai – Goa
b) Delhi – Hyderabad
c) Kolkata – Chennai
d) Coimbatore – Kerala
e) None of these
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a) 120 %
b) 105 %
c) 135 %
d) 150 %
e) 90 %
2) Find the total number of children travelled in all the given trains together?
a) 1194
b) 1568
c) 1826
d) 2192
e) None of these
3) Find the ratio between the total number of passengers travelled in AC coach to that of UR coach of all the given trains together?
a) 15: 37
b) 33: 58
c) 52: 85
d) 27: 43
e) None of these
4) Find the difference between the total number of passengers travelled in Sleeper coach in the trains Chennai – Bangalore, Delhi – Hyderabad and Kolkata – Chennai together to that of the total number of passengers travelled in AC and UR coach together in the trains Coimbatore – Kerala and Mumbai – Goa together?
a) 1325
b) 1150
c) 1580
d) 1775
e) None of these
5) In which of the following trains, the most number of passengers travelled in Sleeper coach?
a) Mumbai – Goa
b) Delhi – Hyderabad
c) Kolkata – Chennai
d) Coimbatore – Kerala
e) None of these
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1). Answer: c)
Total number of men travelled in Chennai – Bangalore and Delhi – Hyderabad train
= > 1500*(45/100) + 1700*(40/100)
= > 675 + 680 = 1355
The total number of women travelled in Coimbatore – Kerala and Mumbai – Goa train
= > 1300*(38/100) + 1600*(32/100)
= > 494 + 512 = 1006
Required % = (1355/1006)*100 = 134.69 % = 135 %
2). Answer: a)
The total number of children travelled in all the given trains together
= > 1500*(13/100) + 1300*(10/100) + 1700*(16/100) + 1600*(21/100) + 1450*(18/100)
= > 195 + 130 + 272 + 336 + 261 = 1194
3). Answer: d)
The total number of passengers travelled in AC coach of all the given trains together
= > 1500*(5/30) + 1300*(4/26) + 1700*(7/34) + 1600*(3/16) + 1450*(5/29)
= > 250 + 200 + 350 + 300 + 250 = 1350
The total number of passengers travelled in UR coach of all the given trains together
= > 1500*(9/30) + 1300*(7/26) + 1700*(10/34) + 1600*(4/16) + 1450*(9/29)
= > 450 + 350 + 500 + 400 + 450 = 2150
Required ratio = 1350: 2150 = 27: 43
4). Answer: b)
The total number of passengers travelled in Sleeper coach in the trains Chennai – Bangalore, Delhi – Hyderabad and Kolkata – Chennai together
= > 1500*(16/30) + 1700*(17/34) + 1450*(15/29)
= > 800 + 850 + 750 = 2400
The total number of passengers travelled in AC and UR coach together in the trains Coimbatore – Kerala and Mumbai – Goa together
= > 1300*(11/26) + 1600*(7/16)
= > 550 + 700 = 1250
Required difference = 2400 – 1250 = 1150
5). Answer: a)
In Chennai – Bangalore = > 1500*(16/30) = 800
In Coimbatore – Kerala = > 1300*(15/26) = 750
In Delhi – Hyderabad = > 1700*(17/34) = 850
In Mumbai – Goa = > 1600*(9/16) = 900
In Kolkata – Chennai = > 1450*(15/29) = 750
In Mumbai – Goa, the most number of passengers travelled in Sleeper coach.
Total number of men travelled in Chennai – Bangalore and Delhi – Hyderabad train
= > 1500*(45/100) + 1700*(40/100)
= > 675 + 680 = 1355
The total number of women travelled in Coimbatore – Kerala and Mumbai – Goa train
= > 1300*(38/100) + 1600*(32/100)
= > 494 + 512 = 1006
Required % = (1355/1006)*100 = 134.69 % = 135 %
2). Answer: a)
The total number of children travelled in all the given trains together
= > 1500*(13/100) + 1300*(10/100) + 1700*(16/100) + 1600*(21/100) + 1450*(18/100)
= > 195 + 130 + 272 + 336 + 261 = 1194
3). Answer: d)
The total number of passengers travelled in AC coach of all the given trains together
= > 1500*(5/30) + 1300*(4/26) + 1700*(7/34) + 1600*(3/16) + 1450*(5/29)
= > 250 + 200 + 350 + 300 + 250 = 1350
The total number of passengers travelled in UR coach of all the given trains together
= > 1500*(9/30) + 1300*(7/26) + 1700*(10/34) + 1600*(4/16) + 1450*(9/29)
= > 450 + 350 + 500 + 400 + 450 = 2150
Required ratio = 1350: 2150 = 27: 43
4). Answer: b)
The total number of passengers travelled in Sleeper coach in the trains Chennai – Bangalore, Delhi – Hyderabad and Kolkata – Chennai together
= > 1500*(16/30) + 1700*(17/34) + 1450*(15/29)
= > 800 + 850 + 750 = 2400
The total number of passengers travelled in AC and UR coach together in the trains Coimbatore – Kerala and Mumbai – Goa together
= > 1300*(11/26) + 1600*(7/16)
= > 550 + 700 = 1250
Required difference = 2400 – 1250 = 1150
5). Answer: a)
In Chennai – Bangalore = > 1500*(16/30) = 800
In Coimbatore – Kerala = > 1300*(15/26) = 750
In Delhi – Hyderabad = > 1700*(17/34) = 850
In Mumbai – Goa = > 1600*(9/16) = 900
In Kolkata – Chennai = > 1450*(15/29) = 750
In Mumbai – Goa, the most number of passengers travelled in Sleeper coach.
Given is a pie chart which shows the percentage distribution of time out of 50 hours for which a person covers a certain distance in river in different fragments of the day.
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1). A motorboat covers a certain distance downstream in Monday and returns covering the same distance upstream on Thursday. If the speed of the stream is 6 km/hr, then what was the speed of motorboat in still water?
46 km/h
162 km/h
132 km/h
140 km/h
None of these
2) If A can row a boat in still water at 8 km/hr. If speed of water current is 3/4th of the speed of boat in still water, and he rows downstream in Sunday.
8.6 km
13.4 km
84 km
22 km
None of these
3) The speed of current is what percent of the speed of boat in still water? A boat travels 36 km downstream in the Friday and returns against the current at Tuesday.
8.91%
5.15%
3.09%
13.67%
9.28%
4) A man can row at a speed of 5km/h in still water and the speed of water current is 2 km/h. If he rows to a place downstream during Tuesday, and he has to pay Rs. 11 per kilometer to row through the river, then what is the amount that he pays?
Rs. 808.5
Rs. 35.8
Rs. 92.6
Rs. 81.6
None of these
5) The ratio of the speed of the boat to that of current is 42 : 5. If the boat goes downstream during Thursday, then it will come back in (approximately)?
6.99 h
8.89 h
9.18 h
5.12 h
6.05 h
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46 km/h
162 km/h
132 km/h
140 km/h
None of these
2) If A can row a boat in still water at 8 km/hr. If speed of water current is 3/4th of the speed of boat in still water, and he rows downstream in Sunday.
8.6 km
13.4 km
84 km
22 km
None of these
3) The speed of current is what percent of the speed of boat in still water? A boat travels 36 km downstream in the Friday and returns against the current at Tuesday.
8.91%
5.15%
3.09%
13.67%
9.28%
4) A man can row at a speed of 5km/h in still water and the speed of water current is 2 km/h. If he rows to a place downstream during Tuesday, and he has to pay Rs. 11 per kilometer to row through the river, then what is the amount that he pays?
Rs. 808.5
Rs. 35.8
Rs. 92.6
Rs. 81.6
None of these
5) The ratio of the speed of the boat to that of current is 42 : 5. If the boat goes downstream during Thursday, then it will come back in (approximately)?
6.99 h
8.89 h
9.18 h
5.12 h
6.05 h
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1). Answer: b
Time taken to cover the distance downstream in Monday,
t₁ = 13× 50/ 100
= 6.5 hours.
Time taken to cover the distance upstream in Thursday,
t2 = 14× 50 /100 = 7 hours
The speed of stream, = 6 km/h
The speed of motorboat in still water = y ( t2 + t1/ t2 − t1 )
= 6 ( 6.5 + 7 /6.5 − 7 ) = 6 ( 13.5 /0.5 )
= 162 km/h
2). Answer: c
Speed of boat in still water, x = 8 km/h
Speed of water current, y
= 3/ 4 × 8 = 6 km/h
Required distance = 12/100*50*14=84km
3). Answer: d
Downstream speed = 36/ (time taken in Friday)
= 36 /(16 × 50/ 100) =36/ 8 = 4.5 km/h
Upstream speed = 36/ (time taken during Tuesday)
= 36 /( 21 /100 × 50) = 36/ 10.5 = 3.42km/h
Speed of boat in still water = ½* (downstream speed + upstream speed)
= 1/2 (4.5 + 3.42)
= 1/2 (7.9)
= 3.95 km/h
Speed of stream = 1/ 2 (down speed – up speed)
= 1/ 2 (4.5 – 3.42)
=0.54
Required percentage = 0.54/3.95*100= 13.67%
4). Answer: a
The speed of the man, x = 5 km/h
The speed of water current, y = 2 km/h
Distance covered = 21/100*50*(5+2)= 73.5 km
Required amount = 73.5*11= Rs.808.5
5). Answer: b
Let the speed of the boat be 42x km/h and speed of current be 5x km/h
The boat goes downstream in (14 × 50 /100) h
= 7 h
Distance = speed × time
Distance = 7 × (42x + 5x)
= 47x × 7
Upstream speed = 42x – 5x
= 37x km/h
Time taken = 47x × 7/ 37x
= 8.89 h
Time taken to cover the distance downstream in Monday,
t₁ = 13× 50/ 100
= 6.5 hours.
Time taken to cover the distance upstream in Thursday,
t2 = 14× 50 /100 = 7 hours
The speed of stream, = 6 km/h
The speed of motorboat in still water = y ( t2 + t1/ t2 − t1 )
= 6 ( 6.5 + 7 /6.5 − 7 ) = 6 ( 13.5 /0.5 )
= 162 km/h
2). Answer: c
Speed of boat in still water, x = 8 km/h
Speed of water current, y
= 3/ 4 × 8 = 6 km/h
Required distance = 12/100*50*14=84km
3). Answer: d
Downstream speed = 36/ (time taken in Friday)
= 36 /(16 × 50/ 100) =36/ 8 = 4.5 km/h
Upstream speed = 36/ (time taken during Tuesday)
= 36 /( 21 /100 × 50) = 36/ 10.5 = 3.42km/h
Speed of boat in still water = ½* (downstream speed + upstream speed)
= 1/2 (4.5 + 3.42)
= 1/2 (7.9)
= 3.95 km/h
Speed of stream = 1/ 2 (down speed – up speed)
= 1/ 2 (4.5 – 3.42)
=0.54
Required percentage = 0.54/3.95*100= 13.67%
4). Answer: a
The speed of the man, x = 5 km/h
The speed of water current, y = 2 km/h
Distance covered = 21/100*50*(5+2)= 73.5 km
Required amount = 73.5*11= Rs.808.5
5). Answer: b
Let the speed of the boat be 42x km/h and speed of current be 5x km/h
The boat goes downstream in (14 × 50 /100) h
= 7 h
Distance = speed × time
Distance = 7 × (42x + 5x)
= 47x × 7
Upstream speed = 42x – 5x
= 37x km/h
Time taken = 47x × 7/ 37x
= 8.89 h
Following table shows the total units consumed by the six different houses in four different months in the year 2017 and the amount per units also given.
Note:
1- 100 units = Rs. 1
101 – 300 units = Rs. 3
301 – 500 units = Rs. 5
Above 500 units = Rs. 6.50
👉Join @practice_note
Note:
1- 100 units = Rs. 1
101 – 300 units = Rs. 3
301 – 500 units = Rs. 5
Above 500 units = Rs. 6.50
👉Join @practice_note
👎1
6.Find the difference between the electricity amount of house A, C and E in the month of Feb to that of the house B, D and F in the month of June?
580
660
690
420
None of these
7.Find the ratio between the electricity amounts of all the given houses in the month of Apr to that of the month of August?
2197 : 2788
2352 : 2077
1089 : 952
3929 : 3829
None of these
8.Find the average electricity amount paid by the house owner of F for all the given months together?
1735
2180
2560
1575
None of these
9.Total units consumed by all the given houses in the month of Feb is approximately what percentage of total units consumed by all the given houses in the month of August?
75 %
90 %
105 %
120 %
135 %
10.Find the total electricity amount paid by the house owner of A, D and F together for all the given months?
35580
31420
28970
39710
None of these
👉Join @practice_note
580
660
690
420
None of these
7.Find the ratio between the electricity amounts of all the given houses in the month of Apr to that of the month of August?
2197 : 2788
2352 : 2077
1089 : 952
3929 : 3829
None of these
8.Find the average electricity amount paid by the house owner of F for all the given months together?
1735
2180
2560
1575
None of these
9.Total units consumed by all the given houses in the month of Feb is approximately what percentage of total units consumed by all the given houses in the month of August?
75 %
90 %
105 %
120 %
135 %
10.Find the total electricity amount paid by the house owner of A, D and F together for all the given months?
35580
31420
28970
39710
None of these
👉Join @practice_note
6.Answer: b
The electricity amount of house A, C and E in the month of Feb
= > 670*6.50 + 430*5 + 540*6.50
= > 4355 + 2150 + 3510 = Rs. 10015
The electricity amount of house B, D and F in the month of June
= > 630*6.50 + 680*6.50 + 280*3
= > 4095 + 4420 + 840 = Rs. 9355
Required difference = 10015 – 9355 = Rs. 660
7.Answer: d
The electricity amount of all the given houses in the month of Apr
= > 750*6.50 + 810*6.50 + 480*5 + 650*6.50 + 260*3 + 420*5
= > 4875 + 5265 + 2400 + 4225 + 780 + 2100
= > 19645
The electricity amount of all the given houses in the month of August
= > 440*5 + 570*6.50 + 460*5 + 720*6.50 + 640*6.50 + 420*5
= > 2200 + 3705 + 2300 + 4680 + 4160 + 2100
= > 19145
Required ratio = 19645: 19145 = 3929: 3829
8.Answer: a
The total electricity amount paid by the house owner of F for all the given months together
= > 380*5 + 420*5 + 280*3 + 420*5
= > 1900 + 2100 + 840 + 2100
= > 6940
Required average = 6940/4 = 1735
9.Answer: c
Total units consumed by all the given houses in the month of Feb
= > 670 + 760 + 430 + 630 + 540 + 380 = 3410
Total units consumed by all the given houses in the month of August
= > 440 + 570 + 460 + 720 + 640 + 420 = 3250
Required % = (3410/3250)*100 = 104.92 % = 105 %
10.Answer: d
Total electricity amount paid by the house owner of A, D and F together for all the given months
= > 670*6.50 + 750*6.50 + 520*6.50 + 440*5 + 630*6.50 + 650*6.50 + 680*6.50 + 720*6.50 + 380*5 + 420*5 + 280*3 + 420*5
= > 4355 + 4875 + 3380 + 2200 + 4095 + 4225 + 4420 + 4680 + 1900 + 2100 + 840 + 2100
= > Rs. 39710
The electricity amount of house A, C and E in the month of Feb
= > 670*6.50 + 430*5 + 540*6.50
= > 4355 + 2150 + 3510 = Rs. 10015
The electricity amount of house B, D and F in the month of June
= > 630*6.50 + 680*6.50 + 280*3
= > 4095 + 4420 + 840 = Rs. 9355
Required difference = 10015 – 9355 = Rs. 660
7.Answer: d
The electricity amount of all the given houses in the month of Apr
= > 750*6.50 + 810*6.50 + 480*5 + 650*6.50 + 260*3 + 420*5
= > 4875 + 5265 + 2400 + 4225 + 780 + 2100
= > 19645
The electricity amount of all the given houses in the month of August
= > 440*5 + 570*6.50 + 460*5 + 720*6.50 + 640*6.50 + 420*5
= > 2200 + 3705 + 2300 + 4680 + 4160 + 2100
= > 19145
Required ratio = 19645: 19145 = 3929: 3829
8.Answer: a
The total electricity amount paid by the house owner of F for all the given months together
= > 380*5 + 420*5 + 280*3 + 420*5
= > 1900 + 2100 + 840 + 2100
= > 6940
Required average = 6940/4 = 1735
9.Answer: c
Total units consumed by all the given houses in the month of Feb
= > 670 + 760 + 430 + 630 + 540 + 380 = 3410
Total units consumed by all the given houses in the month of August
= > 440 + 570 + 460 + 720 + 640 + 420 = 3250
Required % = (3410/3250)*100 = 104.92 % = 105 %
10.Answer: d
Total electricity amount paid by the house owner of A, D and F together for all the given months
= > 670*6.50 + 750*6.50 + 520*6.50 + 440*5 + 630*6.50 + 650*6.50 + 680*6.50 + 720*6.50 + 380*5 + 420*5 + 280*3 + 420*5
= > 4355 + 4875 + 3380 + 2200 + 4095 + 4225 + 4420 + 4680 + 1900 + 2100 + 840 + 2100
= > Rs. 39710