Aptitude : : Boats and Streams Questions & Answers

  1. A boat can travel with a speed of 10 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 28 km downstream?

A. 2 hours

B. 3 hours

C. 4 hours

D. 5 hours

  1. In one hour, a boat goes 10 km/hr along the stream and 2 km/hr against the stream. The speed of the boat in still water (in km/hr) is?

A. 6 km/hr

B. 5 km/hr

C. 10 km/hr

D. 3 km/hr

  1. A man can row upstrem at 8 kmph and downstream at 10 kmph. Find man's rate in still water and the rate of current?

A. 6 and 4

B. 7 and 3

C. 9 and 1

D. 8 and 2

  1. If Dev rows 15 km upstream in 3 hours and 21 km downstream in 3 hours, then the speed of the stream is?

A. 2 kmph

B. 3 kmph

C. 1 kmph

D. 5 kmph

  1. If a boat goes 7 km upstream in 42 minutes and the speed of the stream is 3 kmph, then the speed of the boat in still water is?

A. 2 kmph

B. 7 kmph

C. 10 kmph

D. 8 kmph