Question

the radius of a wheel is 70 cm how many revolutioms. will it make to cover a distance of 99 km?


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Answer 1

Answer:

225000

Step-by-step explanation:

radius of wheel = 70cm

distance covered in one revolution= circumference of circle= 2πr

= 2×22/7×70 = 440cm

total distance to cover = 99 km = 99×100000cm = 99000000cm

total revolutions needed to cover 99km = 99000000/440= 225000 revolutions

so it would require to make 225000 revolutions to cover a distance of 99km with wheel of radius 70cm

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