A man can row upstream at 22 kmph and downstream at 42 kmph, and then find the speed of the man in still water?	Options
A) 29 B) 92 C) 30 D) 32 E) 23

Rationale: "us = 22 ds = 42 m = ( 42 + 22 ) / 2 = 32 answer : d"
Answer: D