Question

The circumference of the front wheel of a car is 10dm and that of the hind wheel in 16dm. How may revolutions more will the first wheel make than the second in covering a distance of 96km?

Answer 1

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Answer 2

We know that,
1 km = 10000 dm

Now, 96 km = 960000 dm

FOR FRONT WHEEL :

Circumference of front wheel = 10 dm
Number of revolutions taken to cover 10 dm = 1
So, number of revolutions taken to cover 960000 dm = 960000/10 = 96000

FOR HIND WHEEL :

Circumference of hind wheel = 16 dm
Number of revolutions taken to cover 16 dm = 1
So, number of revolutions taken to cover 960000 dm = 960000/16 = 6000

Number of extra revolutions made by hind wheel than front wheel = 96000 - 6000 = 36000