Three persons A, B and C are standing in a queue. There are five persons between A and B and eight persons between B and C. If there be three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue?
Anonymous Quiz
7%
(a) 41
50%
(b) 40
27%
(c) 28
15%
(d) 27
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Pointing to a man on the stage, Rita said, "He is the brother of the daughter of the wife of my husband." How is the man on the stage related to Rita?
Anonymous Quiz
70%
(a) Son
14%
(b) Husband
11%
(c) Cousin
4%
(d) Nephew
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A man is facing north-west. He turns 90° in the clockwise direction and then 135° in the anticlockwise direction. Which direction is he facing now?
Anonymous Quiz
10%
(a) East
56%
(b) West
18%
(c) North
16%
(d) South
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A person is standing on the first step from the bottom of a ladder. If he has to climb 4 more steps to reach exactly the middle step how many steps does the ladder have? (UPSC-2016)
Anonymous Quiz
7%
(a) 8
48%
(b) 9
38%
(c) 10
7%
(d) 11
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In a class, there are three groups A, B and C. If one student form group B are shifted to group C, then what happens to the average weight of the students of the class? (UPSC-2020)
Anonymous Quiz
6%
(a) It increases
10%
(b) It decreases
66%
(c) It remains the same
18%
(d) No conclusion can be drawn due to the insufficient data
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Alok has three book stores - A, B and C. Store B has 2/5 of the number of books that store A has, and store C has 2/5 of the number of books that store B has. If store C has 2100 less books than store A, then how many books are in store B?
Anonymous Quiz
9%
(a) 1200
58%
(b) 1000
27%
(c) 2500
7%
(d) 1600
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👆Ans. B | Explanation:👆
Let store A has x books.
Then, books in store B = (2/5) x
& Books in store C = (2/5) x × 2/5 = 4x/25
According to the question,
x – 4x/25 = 2100
or 21x/25 = 2100
or x = 2500
Now, Number of books in store B = (2/5) x = (2/5) × 2500 = 1000
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Let store A has x books.
Then, books in store B = (2/5) x
& Books in store C = (2/5) x × 2/5 = 4x/25
According to the question,
x – 4x/25 = 2100
or 21x/25 = 2100
or x = 2500
Now, Number of books in store B = (2/5) x = (2/5) × 2500 = 1000
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Dr. Bunti made a medicine by mixing two herbs X and Y. In 50 g of that medicine, the percentage of herb X is 40%. How much of herb X should Dr. Bunti add into it further so as to increase its percentage to 84%?
Anonymous Quiz
10%
(a) 142 g
19%
(b) 132.8 g
66%
(c) 137.5 g
5%
(d) 141.7 g
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👆Ans. C | Explanation:👆
According to the question,
Quantity of herb X in 50 g of medicine = (40/100) × 50 = 20 g
Let x g of herb X is further mixed in the medicine.
Then, [(20 + x)/(50 + x)] × 100 = 84
Or 2000 + 100x = 4200 + 84x
Or 16x = 2200
Or x = 2200/16
Or x = 137.5 g
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According to the question,
Quantity of herb X in 50 g of medicine = (40/100) × 50 = 20 g
Let x g of herb X is further mixed in the medicine.
Then, [(20 + x)/(50 + x)] × 100 = 84
Or 2000 + 100x = 4200 + 84x
Or 16x = 2200
Or x = 2200/16
Or x = 137.5 g
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👆UPSC CSAT Analysis of SET - A👆
🖌 See from where majority of the Questions came in CSAT Paper - 2022 & Prepare Accordingly!
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🖌 See from where majority of the Questions came in CSAT Paper - 2022 & Prepare Accordingly!
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If the length of the minute hand of a round clock is 14 feet, then what will be the area swept by the minute hand in 20 minutes?
Anonymous Quiz
7%
(a) 616 square feet
66%
(b) 616/3 square feet
22%
(c) 140/3 square feet
4%
(d) 308 square feet
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👆Ans. B | Explanation:👆
The hands of a clock move in a circular fashion and hence the minute hand in question can be considered as radius (r) of the circle it draws.
In 60 minutes, the minute hand covers a full circle, i.e. 360°.
Therefore, in 20 minutes, this hand would cover (360°/60) × 20° = 120°
Area swept by the minute hand = [θ/360°] × πr2 (here, r is the radius of the circle)
= [120°/360°] × (22/7) × 14 × 14
= 616/3 square feet.
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The hands of a clock move in a circular fashion and hence the minute hand in question can be considered as radius (r) of the circle it draws.
In 60 minutes, the minute hand covers a full circle, i.e. 360°.
Therefore, in 20 minutes, this hand would cover (360°/60) × 20° = 120°
Area swept by the minute hand = [θ/360°] × πr2 (here, r is the radius of the circle)
= [120°/360°] × (22/7) × 14 × 14
= 616/3 square feet.
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If A = {a, b, c, d} and B = {b, d, f, h}, then which of the following is true for the sets A and B?
Anonymous Quiz
10%
(a) Sets A and B are equal.
24%
(b) Sets A and B are disjoint.
49%
(c) Sets A and B are equivalent.
17%
(d) None of these.
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👆Ans. C | Explanation:👆
Given, A = {a, b, c, d}, and B = {b, d, f, h}
Equal sets have the exact same elements in them, even though they could be out of order. Equivalent sets have different elements but have the same number of elements. Two sets are called disjoint sets if they don't have any element in common.
Now, n(A) = 4 and n (B) = 4
So, sets A and B are equivalent, because both have the same number of elements.
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Given, A = {a, b, c, d}, and B = {b, d, f, h}
Equal sets have the exact same elements in them, even though they could be out of order. Equivalent sets have different elements but have the same number of elements. Two sets are called disjoint sets if they don't have any element in common.
Now, n(A) = 4 and n (B) = 4
So, sets A and B are equivalent, because both have the same number of elements.
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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
5%
(a) 38.6%
17%
(b) 42.7%
28%
(c) 48.6%
49%
(d) 40.8%
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👆Ans. D | Explanation:👆
Given, Marked price = Rs. 16000
So, Cost Price = (16000/160) × 100 = Rs. 10000
If it is sold at 12% discount, then Selling Price = 16000 × (88/100) = Rs. 14080
Profit on cost price = 14080 - 10000 = Rs. 4080
So, Profit percent = (4080/10000) × 100 = 40.8%
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Given, Marked price = Rs. 16000
So, Cost Price = (16000/160) × 100 = Rs. 10000
If it is sold at 12% discount, then Selling Price = 16000 × (88/100) = Rs. 14080
Profit on cost price = 14080 - 10000 = Rs. 4080
So, Profit percent = (4080/10000) × 100 = 40.8%
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What is the least number which when divided by 6 leaves 4 as remainder; when divided by 8 leaves 6 as remainder and when divided by 10 leaves 8 as remainder?
Anonymous Quiz
8%
(a) 120
67%
(b) 118
18%
(c) 128
6%
(d) 119
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👆Ans. B | Explanation:👆
LCM of 6, 8, 10 = 120
Difference of divisor and remainder = 6 – 4 = 8 – 6 = 10 – 8 = 2
Hence, desired number = 120 – 2 = 118
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LCM of 6, 8, 10 = 120
Difference of divisor and remainder = 6 – 4 = 8 – 6 = 10 – 8 = 2
Hence, desired number = 120 – 2 = 118
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A family get-together consisted of grandmother, father, mother, four sons with their wives, one son and two daughters to each of the sons. How many females are there in all?
Anonymous Quiz
64%
(a) 14
18%
(b) 16
13%
(c) 18
6%
(d) 24
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Ans. B | Explanation:
प्रात: 6 बजे से दोपहर 3:15 बजे तक की समयावधि = 9 घंटे 15 मिनट = 555/60 घंटे = 37/4 घंटे
इस घड़ी के 3 मिनट 5 सेकंड = सही घड़ी के 3 मिनट
या इस घड़ी के (37/720) घंटे = सही घड़ी के (1/20) घंटे
तो, इस घड़ी के (37/4) घंटे = सही घड़ी के [(1/20) × (720/37) × (37/4)] घंटे = सही घड़ी के 9 घंटे।
सही समय सुबह 6 बजे के 9 घंटे बाद अर्थात दोपहर 3 बजे होगा।
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प्रात: 6 बजे से दोपहर 3:15 बजे तक की समयावधि = 9 घंटे 15 मिनट = 555/60 घंटे = 37/4 घंटे
इस घड़ी के 3 मिनट 5 सेकंड = सही घड़ी के 3 मिनट
या इस घड़ी के (37/720) घंटे = सही घड़ी के (1/20) घंटे
तो, इस घड़ी के (37/4) घंटे = सही घड़ी के [(1/20) × (720/37) × (37/4)] घंटे = सही घड़ी के 9 घंटे।
सही समय सुबह 6 बजे के 9 घंटे बाद अर्थात दोपहर 3 बजे होगा।
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