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Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too.
We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.
Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).
Wish you all the best ! 🙂
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Question 1 of 5
1. Question
In a certain code, ‘256’ means ‘red colour chalk’, ‘589’ means ‘green colour flower’ and ‘254’ means ‘white colour chalk’. The digit in the code that indicates ‘white’ is
Correct
Correct Answer : B
Explanation:
‘256’ = ‘red colour chalk’
‘589’ = ‘green colour flower’
‘254’ = ‘white colour chalk’
5 and 2 colour are common in all three. So, 5 = Colour, 2 = Chalk
Hence, Red = 6, White = 4
Incorrect
Correct Answer : B
Explanation:
‘256’ = ‘red colour chalk’
‘589’ = ‘green colour flower’
‘254’ = ‘white colour chalk’
5 and 2 colour are common in all three. So, 5 = Colour, 2 = Chalk
Hence, Red = 6, White = 4
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Question 2 of 5
2. Question
A boat takes 28 hours for travelling downstream from point A to point B and coming back to point C midway between A and B. If the velocity of the stream is 6km/hr and the speed of the boat in still water is 9 km/hr, what is the distance between A and B?
Correct
Correct Answer : B
Downstream speed = 9+6 = 15
Upstream speed = 9-6 = 3
Now total time is 28 hours
If distance between A and B is d, then distance BC = d/2 Now distance/speed = time, so
d/15 + (d/2)/3= 28 Solve, d = 120 km
Incorrect
Correct Answer : B
Downstream speed = 9+6 = 15
Upstream speed = 9-6 = 3
Now total time is 28 hours
If distance between A and B is d, then distance BC = d/2 Now distance/speed = time, so
d/15 + (d/2)/3= 28 Solve, d = 120 km
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Question 3 of 5
3. Question
How many litres of water must be added to 60 litres of mixture that contains milk and water in the 7:3 such that the resulting mixture has 50% water in it?
Correct
Correct Answer : C
Solution:
Milk = (7/10) *60 = 42 litres.
Water = (3/10) *60 = 18 litres.
So water must be added = 42 – 18 = 24
Incorrect
Correct Answer : C
Solution:
Milk = (7/10) *60 = 42 litres.
Water = (3/10) *60 = 18 litres.
So water must be added = 42 – 18 = 24
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Question 4 of 5
4. Question
Two pipes P and Q can fill a cistern in 12 hours and 4 hours respectively. If they are opened in alternate hours and if pipe A is opened the first hour, in how many hours will the tank be full?
Correct
Correct Answer : D
Pipe P can fill = 1/12
Pipe Q can fill = 1/4
For every two hour, 1/12 + 1/4 = 1/3 Part filled (in 2 hours) Total = 6 hours.
Incorrect
Correct Answer : D
Pipe P can fill = 1/12
Pipe Q can fill = 1/4
For every two hour, 1/12 + 1/4 = 1/3 Part filled (in 2 hours) Total = 6 hours.
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Question 5 of 5
5. Question
A sum of money is to be distributed among A, B, C, D in the proportion of more than D, what is B’s share?
Correct
Correct Answer : C
5 : 2 : 4 : 3. If C gets Rs. 1000
Explanation:
Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively. Then, 4x – 3x = 1000
x = 1000.
Incorrect
Correct Answer : C
5 : 2 : 4 : 3. If C gets Rs. 1000
Explanation:
Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively. Then, 4x – 3x = 1000
x = 1000.
