Find the diameter of the wheel of a cycle if the distance travelled by the cycle during 1000 revolutions is 396000cm.
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Answer:
Revolutions= 1000
Dist. travelled = 396000
dist. travelled in 1 revolution= 396000/1000
= 396
dist travelled in one revolution= circumference of the wheel
396=2πr. we can write 2r= D
D= 396 /π
D = (396×7)/22
D= 18 cm
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