Question

A car travels first 30 km with a uniform speed of
60 km h- and then next 30 km with a uniform speed
of 40 km h-1. Calculate : (i) the total time of journey,
(ii) the average speed of the car.
Ans. (i) 75 min, (ii) 48 km h-1.
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Answer 1

Answer:

(1) 75 min, (2)48km h-1.

Answer 2

Explanation:

as you already know the answer, the explanation is given above .

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