**Question:**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:

**Options are:**

A. 8.5 km/hr

B. 9 km/hr

C. 10 km/hr

D. 12.5 km/hr

Correct answer is:

C. 10 km/hr

Correct answer is:

C. 10 km/hr