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Three circles of diameter 10 cm each are bound together by...

This question belongs to Arithmetic Ability Mensuration 2D
Mensuration 2D
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Three circles of diameter 10 cm each are bound together by a rubber band as shown in the figure.
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The length of the rubber band (in cm) if it is stretched is

Answer & Solution
Correct Answer: Option B
Length of rubber band
= 3d + 2πr
= 30 + 10π
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