Chemistry, asked by doyouknow1234, 7 months ago

the distance between two places is 120 Kilometer. A car travelling at a certain speed can covers the distance in 2 hours 30 minutes. By how many kilometers per hour should the speed of the car be increased for it to take 30 minutes less to cover the distance..................

Answers

Answered by iraagrawal3

2

Answer:

12km/hr

Explanation:

just find the speed in the first case by dividing 120 by 2.5

find the new speed by dividing 120 by 2.

now subtract the values.

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