Ques. When processing flower-nectar into honeybees' extract, a considerable amount of water gets wasted. How much flower-nectar must be processed to yield 1 kg of honey, if nectar contains 50% water, and the honey obtained from this nectar contains 15% water?
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π2
Select the correct answer using the codes given below.
Anonymous Quiz
12%
(a) 1.5 kg
55%
(b) 1.7 kg
25%
(c) 3.33 kg
8%
(d) 2.2 kg
π3
Ans. B | Explanation:
Let the amount of flower-nectar needed be x kg.
Flower-nectar contains 50% water. So, flower-nectar contains 50% of non-watery part.
Honey contains 15% water. So, amount of non-watery part in the honey will be 85%.
When processing flower-nectar into honeybees' extract, only the water is lost during processing.Hence, the non-watery part in flower-nectar should be equal to the non-watery part in honey.
β΄ 50% of the Amount of flower-nectar needed = 85% of the Amount of honey
Or 0.5 Γ x = 0.85 Γ 1 kg
Or x = (0.85/0.5) Γ 1 kg = 1.7 kg
Therefore, the amount of flower-nectar needed is 1.7 kg.
Hence, option (b) is correct.
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Let the amount of flower-nectar needed be x kg.
Flower-nectar contains 50% water. So, flower-nectar contains 50% of non-watery part.
Honey contains 15% water. So, amount of non-watery part in the honey will be 85%.
When processing flower-nectar into honeybees' extract, only the water is lost during processing.Hence, the non-watery part in flower-nectar should be equal to the non-watery part in honey.
β΄ 50% of the Amount of flower-nectar needed = 85% of the Amount of honey
Or 0.5 Γ x = 0.85 Γ 1 kg
Or x = (0.85/0.5) Γ 1 kg = 1.7 kg
Therefore, the amount of flower-nectar needed is 1.7 kg.
Hence, option (b) is correct.
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π9
Ques. If Ξ± and Ξ² are two real numbers such that Ξ± + Ξ² = - q/p and Ξ±Ξ² = r/p, where 0<p<q<r (p, q, r are natural numbers), then which one of the following alternatives represents the highest value?
Anonymous Quiz
6%
(a) 1 / (Ξ± + Ξ²)
32%
(b) (1/ Ξ±) + (1/Ξ²)
43%
(c) β 1/ (Ξ±Ξ²)
19%
(d) Ξ±Ξ²/(Ξ± + Ξ²)
π6
Ans. C | Explanation:
It is given that Ξ± + Ξ² = - q/p and Ξ±Ξ² = r/p, where 0<p<q<r
So, letβs assume p = 1, q = 2 and r = 3.
Putting these values in answer options, we get
(A) 1 / (Ξ± + Ξ²) = - p/q = - (1/2)
(B) (1/ Ξ±) + (1/ Ξ²) = (Ξ± + Ξ²)/ Ξ±Ξ² = -(q/p) Γ (p/r) = - (q/r) = - (2/3)
(C) β 1/ (Ξ±Ξ²) = -(p/r) = - (1/3)
(D) Ξ±Ξ²/(Ξ± + Ξ²) = r/p Γ (-p/q)= - r/q = - (3/2)
We can see that, - (1/3) is the greatest among the above values.
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It is given that Ξ± + Ξ² = - q/p and Ξ±Ξ² = r/p, where 0<p<q<r
So, letβs assume p = 1, q = 2 and r = 3.
Putting these values in answer options, we get
(A) 1 / (Ξ± + Ξ²) = - p/q = - (1/2)
(B) (1/ Ξ±) + (1/ Ξ²) = (Ξ± + Ξ²)/ Ξ±Ξ² = -(q/p) Γ (p/r) = - (q/r) = - (2/3)
(C) β 1/ (Ξ±Ξ²) = -(p/r) = - (1/3)
(D) Ξ±Ξ²/(Ξ± + Ξ²) = r/p Γ (-p/q)= - r/q = - (3/2)
We can see that, - (1/3) is the greatest among the above values.
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π6
πPosition of Letters in English Alphabet
βοΈ Sometimes a word or a sentence is coded by changing the position of English alphabet letters according to a definite pattern, so it is necessary to remember the positions of all the letters in English alphabetical order, both in forward and backward order.
π Important for Coding - Decoding QuestionsβΌοΈ
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βοΈ Sometimes a word or a sentence is coded by changing the position of English alphabet letters according to a definite pattern, so it is necessary to remember the positions of all the letters in English alphabetical order, both in forward and backward order.
π Important for Coding - Decoding QuestionsβΌοΈ
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π11β€2
Q. If 'white' is called 'blue', 'blue' is called 'red', 'red' is called 'yellow', 'yellow, is called 'green', 'green' is called 'black', 'black' is called 'violet' and 'violet' is called 'orange', then what would be the colour of human blood?
Anonymous Quiz
15%
(a) Red
7%
(b) Green
73%
(c) Yellow
5%
(d) Violet
π13
Circular Arrangement of Letters in English Alphabet
If we have to find the letter one placed forward to A, then the letter will be B and this result can be found out by using either linear or circular arrangement but when one is asked to find the letter which is one letter backward of A (Z is one letter backward A) or one letter forward of Z (A is the one letter forward Z), then only circular arrangement gives such results.
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If we have to find the letter one placed forward to A, then the letter will be B and this result can be found out by using either linear or circular arrangement but when one is asked to find the letter which is one letter backward of A (Z is one letter backward A) or one letter forward of Z (A is the one letter forward Z), then only circular arrangement gives such results.
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π13
Que. In a certain code language, 'GIVE' is written as 'VIEG' and 'OVER' is written as "EVRO'. How will 'DISK' be written in that same code?
Anonymous Quiz
8%
(a) SIDK
13%
(b) KISD
8%
(c) KDSI
72%
(d) SIKD
π8
Q. If in a certain code 'INTELLIGENCE' is written as 'ETNIGILLECNE', then how can 'MATHEMATICAL' be written in the same code?
Anonymous Quiz
3%
(a) AMHTMETACILA
11%
(b) TAMMEHTALAC
79%
(c) HTAMTAMELACI
7%
(d) LACITAMEHTAM
π11
Q. If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that code?
Anonymous Quiz
6%
(a) CPNCBX
83%
(b) CPNCBZ
9%
(c) CPOCBZ
3%
(d) CQOCBZ
π11π₯1
Q. The difference between 42% of a number and 28% of the same number is 210. What is 59% of that number?
Anonymous Quiz
9%
(a) 630
64%
(b) 885
21%
(c) 420
6%
(d) 900
π8
πAngle divisions of a clockπ
πA close observation of a clock reveals that an angular space between any two consecutive divisions has further five more divisions. The area between the two divisions corresponds to a value of 5 minutes. Hence, dividing the 30Β° by five will result in the angular value of a minute.
πAngular value of a minute = (30Β°)/5= 6Β°
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πA close observation of a clock reveals that an angular space between any two consecutive divisions has further five more divisions. The area between the two divisions corresponds to a value of 5 minutes. Hence, dividing the 30Β° by five will result in the angular value of a minute.
πAngular value of a minute = (30Β°)/5= 6Β°
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π7π₯1
CSAT Short notes.pdf
9 MB
πCSAT Short notesπ
πSurbhi goyal AIR 78 2021
CSAT short notes
#Topper_Notes
#CSAT
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πSurbhi goyal AIR 78 2021
CSAT short notes
#Topper_Notes
#CSAT
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β€5π₯1
Q. A+ B means A is the son of B AND A - B means A is the wife of B. On the basis of the above statement, what does the expression P + R - Q mean? (UPSC 2017)
Anonymous Quiz
24%
(a) R is father of P
19%
(b) P is the wife of R
52%
(c) Q is the father of P
6%
(d) Q is son of P
π10
Q. Marked price of a phone is Rs. 16,000, which is 60% above the cost price of the phone. If it is sold at a discount of 12% on marked price, then find the profit percent.
Anonymous Quiz
6%
(a) 38.6%
14%
(b) 42.7%
28%
(c) 48.6%
52%
(d) 40.8%
π4
Ans. D | Explanation:
Given, Marked price = Rs. 16000
So, Cost Price = (16000/160) Γ 100 = Rs. 10000
If it is sold at 12% discount, then Selling Price = 16000 Γ (88/100) = Rs. 14080
Profit on cost price = 14080 - 10000 = Rs. 4080
So, Profit percent = (4080/10000) Γ 100 = 40.8%
Hence, option (d) is correct.
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Given, Marked price = Rs. 16000
So, Cost Price = (16000/160) Γ 100 = Rs. 10000
If it is sold at 12% discount, then Selling Price = 16000 Γ (88/100) = Rs. 14080
Profit on cost price = 14080 - 10000 = Rs. 4080
So, Profit percent = (4080/10000) Γ 100 = 40.8%
Hence, option (d) is correct.
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