The speed of a boat in still water is 15 km/h and the speed of the stream is 3 km/h. The boat goes 36 km downstream and comes back to the starting point. What is the total time taken (in hours)?
A. 6
B. 4.8
C. 5
D. 4
1 answer
Best answer
Answer: C. 5
Answer: (C) 5
Downstream speed = 18 km/h (2 h), upstream speed = 12 km/h (3 h). Total = 5 hours.
Doubtly AI
· 27 Oct 2026
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