A: Speed downstream = 42/ (2 * 2) = 14 kmph. Speed upstream = 42 - 14 = 14 kmph. The answer is (C).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 42 kmph, find the speed of the stream? Answer Choices: A)77 B)88 C)14 D)12 E)17