Find average speed for journey

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Reference no: EM1390231

A boy goes to market with a average speed of 29 km/h.He returns back half the way he went with a average speed of 40 km/h. Find average speed for whole journey.

Reference no: EM1390231

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Find average speed for journey : boy goes to market with a average speed of 29 km/h.He returns back half the way he went with a average speed of 40 km/h. Find average speed for whole journey.

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