Question

A car travels from A to B at a speed of

20 km h–1 and returns at a speed of 30 km h–1. The

average speed of the car for the whole journey

is :

(1) 5 km h–1 (2) 24 km h–1

(3) 25 km h–1 (4) 50 km h–1​

Answer 1

Explanation:

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