Question

A boy can swim in water with a speed of 15 km/hr in still water. If the speed of the stream is 8 km/hr, what will be the time taken by the boy to cover 69 km downstream?

A 2 hrs Correct Answer Incorrect Answer
B 3 hrs Correct Answer Incorrect Answer
C 5 hrs Correct Answer Incorrect Answer
D 6 hrs Correct Answer Incorrect Answer

Solution

Downstream Speed = (15 + 8) km/hr = 23 km/hr Time taken = 69/23 = 3 hours

Practice Next
×
×