The diameter of a circular wheel is 3 m. How many revolutions does it

1.	The diameter of a circular wheel is 3 m. How many revolutions does it make in travelling 6.6 km?1. 5002. 7003. 4004. None
Answer» Correct Answer - Option 2 : 700 Given: Diameter of wheel = 3 m Total distance = 6.6 km = 6600 m Circumference of circle = 2π r where r = radius of the circle Diameter of circle = 2 × r Concept used: A wheel cover its length of circumference while making 1 revolution Radius of wheel = 3/2 = 1.5 m Total number of revolution = Total distance / circumference of wheel ⇒ n = 6600/2πr = 6600 / (2π × 1.5) = 6600 × 7/(2 × 22 × 1.5) = 700 Therefore, total revolution made by wheel = 700

The diameter of a circular wheel is 3 m. How many revolutions does it make in travelling 6.6 km?1. 5002. 7003. 4004. None

Answer» Correct Answer - Option 2 : 700

Given:

Diameter of wheel = 3 m

Total distance = 6.6 km = 6600 m

Circumference of circle = 2π r where r = radius of the circle

Diameter of circle = 2 × r

Concept used:

A wheel cover its length of circumference while making 1 revolution

Radius of wheel = 3/2 = 1.5 m

Total number of revolution = Total distance / circumference of wheel

⇒ n = 6600/2πr = 6600 / (2π × 1.5) = 6600 × 7/(2 × 22 × 1.5) = 700

Therefore, total revolution made by wheel = 700

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The diameter of a circular wheel is 3 m. How many revolutions does it make in travelling 6.6 km?1. 5002. 7003. 4004. None

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