A man goes downstream at 11 kmph, and upstream8 kmph. The speed of the stream is Choose the correct choice from the following choices.
A) 1.5 kmph	B) 4 kmph	C) 16 kmph	D) 2.5 kmph	E) 26 kmph

Rationale: "speed of the stream = 1 / 2 ( 11 - 8 ) kmph = 1.5 kmph . correct option : a"
Answer: A