A man can row his boat with the stream at 14 km/h and against the stream in 4 km/h. The man's rate is?	Answers:
A) 1 kmph
B) 3 kmph
C) 8 kmph
D) 7 kmph
E) 5 kmph

Rationale: "ds = 14 us = 4 s = ? s = ( 14 - 4 ) / 2 = 5 kmph answer : e"
Answer: E