6.
A man's speed with the current is 15 km/hr and the speed of the current is 2.5
km/hr. The man's speed against the current is:
A. 8.5 km/hr B. 9 km/hr
C. 10 km/hr D. 12.5 km/hr
Answer: Option C
Explanation:
Man's rate in still water = (15 - 2.5) km/hr
= 12.5 km/hr.
Man's rate against the current = (12.5 - 2.5)
km/hr = 10 km/hr.
