EduGoog

Find our the diameter of the wheel, which can cover 88 Km in 1000 revolutions.

Option:
A. 14 m
B. 28 m
C. 56 m
D. 112 m
Answer: B . 28 m

Justification:

One Revolution of the wheel = circumference of the wheel C = 2 * pi * R = 88 Km / 1000 = 88 m

=> Diameter of the wheel D = 2 * R = 88 / (22/7) => D = 88 * 7 / 22 = 28 m

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