Arithmetic Ability
Area

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Q.

The inner circumference of a circular race track, 14m wide is 440m. Find the radius of the outer circle.

View Answer

Correct choice: A

Explanation:

let inner radius be r meters. 2πr=440⇒r=(440×744)=70mradius of outer circle =(70+14)m Therefore, Radius of outer circle = 70 + 14 = 84m
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