If athul rows 16 km upstream and 24 km down steam taking 4 hours each, then the speed of the stream
Pick:
A) 1 kmph  B) 2 kmph  C) 1.5 kmph  D) 12 kmph  E) 15 kmph

Rationale: speed upstream = 16 / 4 = 4 kmph speed down stream = 24 / 4 = 6 kmph speed of stream = ½ ( 6 - 4 ) = 1 kmph answer : a
Answer: A