A car travels 90km in 2 hours 3 minutes.How much time is required to cover 210km? (unitary) ​

Question

A car travels 90km in 2 hours 3 minutes.How much time is required to cover 210km? (unitary) ​

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Gianna 1 week 2021-09-14T10:36:26+00:00 1 Answer 0 views 0

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    2021-09-14T10:38:19+00:00

    Answer:

    We know Speed = distance/time

    First we have to find out the speed of car

    Distance = 90 km

    Time = 2 and a half hour = 2.5 hours

    Speed of car = 90/2.5 = 36 km /hr

    Now new distance = 30 km

    Speed = 36 km/hr

    Time = to find out

    Time = distance /speed

    Time = 30 km/36 km per hour

    Time = 5/6 hour

    Time = 5/6 × 60 minutes

    Time = 50 minutes

    The car will take time of 5/6 hour or 50 minutes to cover 30km

    Answer :The car will take time of 5/6 hour or 50 minutes to cover 30 km

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