Question

Diameter of a wheel of a train is 154 m. How much distance it will cover in 10 revolutions?

Answer 1

Step-by-step explanation:

d = 154 m

r= d/2

r = 77m

distance covered in one round : perimeter of Circle

perimeter of Circle=2πr

2×22/7×77

= 484 m

distance covered in ten rounds = 484×10 = 4840 m

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Answer 2

Question:

Diameter of a wheel of a train is 154 m. How much distance it will cover in 10 revolutions?

To find:

How much distance the wheel will cover in 10 revolutions?

Solution:

Diameter of a wheel of a train is 154 m.

:. the radius of the wheel= 154/2 m = 77m ( on dividing 154 by 2)

:. the distance it will cover in 1 revolution= circumference= 2πr = (2ײ²/7 × 77)m

= 484 m

:. the distance it will cover in 10 revolutions: 484 m×10= 4840 m

Answer:- It will cover 4840 m in 10 revolutions.

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