Question

One car moving on straight road covers one third of the distance with 20km/hr and the rest with 60km/hr.the avg speed is?

Answer 1

Assuming the total distance to be 3x.

Time taken by the car to cover one-third of the distance = x/20

Time taken to cover two-thirds of the distance by the car = 2x/60

= x/30 Total time taken by the car

= x/20 + x/30 equals to 5x/60 which is x/12

Average speed obtained= (Total distance travelled)/(Total time taken)


= (3x)/(x/12) = 36 kilometre/hour

Answer 2

Ans:36km/h

Explanation:

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