A man's speed with the current is 22 km / hr and the speed of the current is 4 km / hr. The man's speed against the current is Options
A) 8.5 km / hr
B) 9 km / hr
C) 10 km / hr
D) 14 km / hr
E) None
Sol.   Man's rate in still in water = (22 - 4) km / hr = 18 km / hr.   Man's rate against the current = (18 - 4) km / hr = 14 km / hr.   Answer 14 km / hr
<result>D</result>
A man's speed with the current is 22 km / hr and the speed of the current is 4 km / hr. The man's speed against the current is