Question

An object covers 40 km in first 1/2 hour and 80 km in next 1/2 hour. Calculate its average speed. Plz say it in detail with process

Answer 1

Explanation:

$avg. \: speed = \frac{total \: distance}{total \: time}$

$= \frac{40 + 80}{ \frac{1}{2} + \frac{1}{2} } = 120 \: kmph$

Avg. Speed = 120 kmph.

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