Question

A tractor tire has diameter 2.1m. Find how many complete revolutions
must it make to cover 7.92 km.

Answer 1

Answer:

Distance covered in 1 revolution = 88*1000/ 1000 = 88 m

Therefore circumference = 88 m

So Pi*D = 88

D = 28 m

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Answer 2

Answer:

1000 revolution = 88 km

=> 1 revolution = 88 m

=> 2?r = 88

=> r = 14

=> d = 28

Step-by-step explanation:

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