Question

Ranu has a bicycle whose each wheel has a radius of 70 cm. She covers a distance of 2km 450 m from his school to home. Find out the number of complete revolutions that each wheel of the bicycle makes.

Answer 1

Answer: circumference of wheel is 16.2 m.

2450m/16.2 = 151.2 rounds

Step-by-step explanation:

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Answer 2

Given - Radius and distance

Find - Number of revolutions

Solution - 557 revolutions will be made by the wheel.

1 revolution will be equal to the circumference of the wheel.

Circumference = 2πr

Circumference = 2*70*22/7

Circumference = 440 cm or 4.4 m

Total distance = 2 km 450 m

1 km = 1000 m

2 km = 2000 m

Total distance = 2000 + 450

Total distance = 2450 m

4.4 m is covered by 1 revolution

2450 m will be covered by number of revolutions = 1*2450/4.4

2450 m will be covered by number of revolutions = 556.8 or 557 revolutions

So, 557 revolutions will be made by the wheel.