Question

the wheel of a car are of diameter 80 centimetre each. how many complete revolutions does each wheel make in 10 minutes when the car is travelling at the speed of 66 on per hour ?

Answer 1

distance covered by the car in 10 minutes.


$( \frac{66 \times 1000 \times 100 \times 10}{60} )$


circumference of the wheel of the car.

2×22/7 × 40 cm

numbers of revolution in 10 minutes when the car is travelling at a speed of 66km/ hr.



$( \frac{6600000}{6} \times \frac{7}{2 \times 22 \times 40} )$


= 4375


hence the wheel of car make 4375 revolution in 10 minutes.

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