Question

A car travels at the speed of 50km /hr for the first half of the journy and at the speed of 60 km hr of the second half of the journey what is the avg speed of tthe car for th entire journey

Answer 1

Answer:

$\bold\green{57.5 km/hour}$

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$\huge\mathbb{Solution:}$

First speed(u)= 50 km/hour.

Last speed = (v) = 60 km/hour.

Average speed (V) = (u + v)/2

$\longrightarrow\tt V =\frac{55 + 60}{2}\:km/hour$

$\longrightarrow\tt V =\frac{115}{2}\: km/hour$

$\longrightarrow\tt V = 57.5\: km/hour$

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