Boats & Streams Quiz | Quantitative Aptitude MCQ Practice for IBPS AFO 2026

1

A boat which has a speed of 6 km/hr in still water cover 2 km in upstream in 30 minutes. How much distance it could cover in 1 hour 24 minutes in downstream?

Solution & Explanation Upstream speed = 2/0.5 = 4 km/h. Stream = 6-4 = 2 km/h. Downstream = 6+2 = 8 km/h. Distance = 8 × 1.4 = 11.2 km.

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2

Train - A leaves Delhi at 8:00 A.M. and reaches Lucknow at 4:00 P.M. and train - B leaves Lucknow at 1:00 P.M. and reaches Delhi at 5:00 P.M. Find at what time both trains will meet each other?

Solution & Explanation Train A travels from 8:00 A.M. to 4:00 P.M., taking 8 hours. Train B travels from 1:00 P.M. to 5:00 P.M., taking 4 hours. Let the distance between Delhi and Lucknow be D. Speed of Train A = D/8 km/hr. Speed of Train B = D/4 km/hr. Train A starts at 8:00 A.M. and Train B starts at 1:00 P.M. So, Train A travels for 5 hours (from 8:00 A.M. to 1:00 P.M.) before Train B starts. Distance covered by Train A in these 5 hours = (D/8) * 5 = 5D/8. The remaining distance between them at 1:00 P.M. is D - 5D/8 = 3D/8. Now, both trains are moving towards each other. Their relative speed = Speed A + Speed B = D/8 + D/4 = 3D/8 km/hr. Time taken to meet = (Remaining Distance) / (Relative Speed) = (3D/8) / (3D/8) = 1 hour. Since Train B started at 1:00 P.M., they will meet 1 hour after 1:00 P.M., which is 2:00 P.M.

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3

A boat goes 30 km downstream in 2 hours and returns upstream in 3 hours. Find the speed of the boat in still water.

Solution & Explanation Downstream = 30/2 = 15 km/h. Upstream = 30/3 = 10 km/h. Boat speed = (15+10)/2 = 12.5 km/h.

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4

A boat covers a distance of 10.8 km upstream in 36 minutes and the speed of boat in still water is 21kmph. Find the time taken by boat to cover 60km downstream?

Solution & Explanation Upstream speed = 10.8 / 0.6 = 18. Stream = 21 - 18 = 3. Downstream = 21 + 3 = 24. Time = 60/24 = 2.5 hrs.

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5

A man moves downstream at a rate of 14 km/h and upstream at a rate of 6 km/h. Speed of boat in still water is

Solution & Explanation B = (14+6)/2 = 10.

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Boats & Streams Quiz for IBPS AFO 2026

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