if a man goes to a place at an average speed of 10 km/h and then return at the average speed of 15 km/h find his average speed during the whole journey
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Average speed = 2* v1* v2 / (v1+v2) =
= 2*10*15 / 25
= 12 km/h.
Hope it's helpful to u.
= 2*10*15 / 25
= 12 km/h.
Hope it's helpful to u.
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