If the radius of a tyre is 7 cm, what distance will it cover in 50 rotations ?
(a) 44 metre (b) 7 metre (c) 50 metre (d) 22 metre
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Radius of tyre= 7cm
Distance travelled by tyre in 1 rotation= Circumference of the tyre
2*22/7*7= 44cm
Distance travelled in 50 rotations= 50*44
= 2200cm or 22m
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