Question

A car travels at a speed of 50km /hr fot 30 minutes ,at 30km /hr for next 15 minutes and then 70 km /hr for next 45 minutes. What is the average speed of the car ?​

Answer 1

SOLUTION

AVERAGE SPEED IS

$\frac{2 5+ \frac{30}{4} + \frac{70 \times 3}{4} }{ \frac{1}{2} + \frac{1}{4} + \frac{3}{4} } km.h {}^{ - 1} \\ = \frac{100 + 30 + 210}{2 + 1 + 3} \\ = \frac{340}{6} \\ = 56.67 \: \: km.h {}^{ - 1}$

Answer 2

Answer:

56.67 km/hr is the answer........

Explanation:

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