Question

Wheel of cycle is of diameter 49 cm. How much distance the cycle will cover in 100 revolutions? (Take π =22/7)

Answer 1

diameter of wheel =49.
Radius =49/2cm.
circumference of circle =2πr=2*49/2*22/7
circumference =7*22=154cm.
now for distance =circumference *revolution =154*100=15400cm=154m
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Answer 2

radius of wheel is 49/2
distance covered by wheel in one revolution is equal to the circumference of wheel =2π×49/2
distance covered by wheel in 100 revolutions =100×2×22÷7×49/2=15400