A 100m long rope was coiled into a circle of radius 3. How many complete turns of the rope is possible? ( A ) 5 ( B ) 6 ( C ) 4 ( D ) 3
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Answer:
Given
Total boundary length=100m
Radius of circle=3m
One round = Perimeter of circle
=2πr
=2×22/7*×3
=132/7
Now as we know total boundary length is the Perimeter
Therefore: 100÷132/7 would be equal to total no of revolutions
After solving You will get the answer which is
5rounds
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