Question

A man can row upstream at 18 km/hr and downstream at 24 km/hr. Find the man’s rate in still water and the rate of the current.

A 22 km/hr & 4 km/hr Correct Answer Incorrect Answer
B 27 km/hr & 3 km/hr Correct Answer Incorrect Answer
C 23 km/hr & 2 km/hr Correct Answer Incorrect Answer
D 21 km/hr & 3 km/hr Correct Answer Incorrect Answer

Solution

Upstream = 18 km/hr Downstream = 24 km/hr Man’s rate in still water = 1/2 × (24 + 18 ) = 21 km/hr Rate of the current = 1/2 × (24 - 18) = 3 km/hr

Practice Next
×
×