the diameter of a bicycle tyre is 42 cm .if it complete two revolution in 1 sec: how much distance will it cover in 10 seconds?
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2 revolutions in 1 second,
20 revolutions in 10 seconds,
radius of bicycle=42/2=21cm,
distance covered in 1 sec=2×circumference of bicycle,
=2×2×22/7×21
=22×12
=264cm
in 10 seconds=2640cm=2.64m
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