Numerical Ability Questions and Answers


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A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?


A. 40 minutes
B. 1 hour
C. 1 hr 15 min
D. 1 hr 30 min

Answer & Explanation:

Answer: Option C

Explanation:

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A man can row three-quarters of a kilometre against the stream in 11 1/4 minutes and down the stream in 7 1/2 minutes. The speed (in km/hr) of the man in still water is:


A. 2
B. 3
C. 4
D. 5

Answer & Explanation:

Answer: Option D

Explanation:



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Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is:


A. 16 hours
B. 18 hours
C. 20 hours
D. 24 hours

Answer & Explanation:

Answer: Option D

Explanation: Speed upstream = 7.5 kmph.

Speed downstream = 10.5 kmph.

Total time taken = 105/7.5 + 105/10.5 hours = 24 hours.



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A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:


A. 2 : 1
B. 3 : 1
C. 3 : 2
D. 4 : 3

Answer & Explanation:

Answer: Option B

Explanation:

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A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:


A. 1 km/hr
B. 1.5 km/hr
C. 2 km/hr
D. 2.5 km/hr

Answer & Explanation:

Answer: Option A

Explanation:

Free Numerical Ability Psychometric Tests


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