Question
A wheel goes 7920 metres in 90 rounds. What will be the
diameter of that wheel? (Use π = 22/7)Solution
ATQ,
Distance = 7920 metres
Circumference = 7920 ÷ 90 = 88 metres
Let radius = x metres
Circumference = 2πr
ATQ:
88 = 2 × (22/7) × x
x = 14
Diameter = 2 × 14 = 28 metres
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