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| 1. |
A man moves at 60 ms-1for half time of journey and for next half time he moves at 5ms-1 for half distance and 7.5 ms-1 for next half distance find his average speed |
| Answer» A man moves at 60 ms-1for half time of journey and for next half time he moves at 5ms-1 for half distance and 7.5 ms-1 for next half distance find his average speed | |