Question

The diameter of a wheel of a car is 77 cm. How many revolutions will it make to cover 242 m? (Take π≈227)

Answer 1

Answer:

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Answer 2

Answer:

50000 Nos

Step-by-step explanation:

Diameter of the wheel = 77 cm = 77 / 100000 Km = 0.00077 km.

So the circumference of the wheel = 2 x 22/7 x r = 22/7D = 22/7 x 0.00077 = 0.00242 Mts.

The distance travelled by the car = 121 Kms.

So the number of revolution the wheel will take to travel 121 Kms = 121 / Circumference of the wheel

= 121/0.00242 = 50000 nos.

Ans: 50000 Nos.