Question

A bus has wheels of diameter 1.4 . Traveling from one town to other, the wheels complete 20,000 rotations . Find the distance covered by the bus

Answer 1

diameter of wheel = 1.4

radius = 1.4/2 = 0.7

∴ circumference of wheel = 2 * 22/7 * 0.7 = 4.4

no. of rotations = 20,000

∴ distance covered = circumference * no. of rotations

                                  = 4.4 * 20000

                                  = 88000

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