A wheel of a scooter covers a distance of 88 m in 100 revolutions find the radius of the wheel
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The total distance travelled is 88 km = 88000 m
No. of revolutions = 100
Now
Distance travelled in 1 revolution = 2 ××22/7 ×R
=> Distance travelled in 1000 revolutions = 2 × 22/7 × R ×100
=> 100× 2 ×22/7 × R = 88000
=> R = 88000 ×7/100×2
=280m
=> = 28m
Thus , radius of wheel = 28 m
No. of revolutions = 100
Now
Distance travelled in 1 revolution = 2 ××22/7 ×R
=> Distance travelled in 1000 revolutions = 2 × 22/7 × R ×100
=> 100× 2 ×22/7 × R = 88000
=> R = 88000 ×7/100×2
=280m
=> = 28m
Thus , radius of wheel = 28 m
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