Question

A manis going to a market in a bicycle. If the wheels of his bicycle make 12600 revolutions per hour and if the radius of the wheel is 21 cm, find the speed of the man in km/hr.
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Answer 1

Answer:

16.632 km/hr

Step-by-step explanation:

Radius=21 cm

Perimeter=2 x pi x r

2 x 22/7 x 21 = 132 cm

Distance traveled by 12600 revolutions (perimeters)

=12600x132=1663200cm=16632m=16.632km

Therefore the speed of the man is 16.632 km/hr.

Hope it helps you!

Answer 2

Answer:

16.632Km/h àaaaaaaaaaaaaaaaaaannnnnnnnnnnnnnnnnsssssssssssswwwwwwwwwwwwwweeeeeeeeeeeeeerrrrrrrrrrrrrrrrrrr