Anand can row a boat in still water at a speed of 5 kmph. The speed of the stream is 3 kmph. Find the time taken by him to row 40 km downstream (in hours).

5

According to the question:

Speed of boat in still water= 5 km/hr

Speed of stream/current = 3 km/hr

Downstream speed (Ds) = 5 + 3 = 8 km/hr

Time taken by him to row 40 km downstream:

Time = \(\frac{ Distance}{Speed}\)

Time = \(\frac{40}{8}\)

Time = 5 hr