A car travels 90 km in (2)1/2 hours. (a)...

A car travels 90 km in `(2)1/2` hours. (a) How much time is required to cover 30 km with the same speed? (b) Find the distance covered in 2 hours with the same speed.

Verified by Experts

`a)90km=2.5`hrs
`1km=2.5/90`hrs`=1/36`hrs
`30km=30/36=0.83`hrs`=50min`
`b)2.5hrs=90km`
`1hr=90/2.5km=36km`
`1hrs=2xx36=72km`.

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