Question

the diameter of the weel of a car is 63 cm . how many revolution will it make to travel 7.9 km?​

Answer 1

Answer:

3,989.8989

Step-by-step explanation:

Let no.of revolutions be n

So no.of revolutions completed to cover 790000 cm(=7.9km) is

No.of revolutions in to circumference of the wheel

= n x 2 pie r. (r=63/2)

790000= n x 2 x 22/7 x 63/2

790000 x 7 x 2 / 2 x 22 x 63= n

3989.8989 = n

3989.8989 revolutions

Answer 2

Answer:

3989.8 revolutions...

Step-by-step explanation:

explanation is there in the attachment.. i hope it helps you mate.....

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