Maths A person walks x km from a to b. He went with an average speed of per hour and returned from b to a at an average speed of y kmph. What was his average speed for the whole journey?
| Q.201612: A person walks x km from a to b. He went with an average speed of per hour and returned from b to a at an average speed of y kmph. What was his average speed for the whole journey? |
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