CBSE Class 7 Answered
How many times a wheel of radius 28cm must rotate to go 345m?
Asked by ramchsai_65 | 12 Feb, 2016, 05:31: PM
Expert Answer
Given, Radius of wheel = 28cm
Distance to be covered = 345 m = 34500 cm.
Therefore, cirumference of the wheel =
= 176 cm
Number of rotations required to cover 176 cm = 1
Then, number of rotations required to cover 1 cm =
Therefore, number of rotations needed to cover 34500 cm =
Answered by Keravi Thanani | 12 Feb, 2016, 06:12: PM
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