A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
A. 2 hours
B. 3 hours
C. 4 hours
D. 5 hours
E. None of these
Answer: Option C
Solution(By Examveda Team)
Speed downstream= (13 + 4) km/hr
= 17 km/hr
Time taken to travel 68 km downstream
= $$\frac{{68}}{{17}}$$ hours
= 4 hours
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