Question

A race track is in the form of a ring whose inner circumference is 352m,and outer circumference is 396m.find the width of the track

Answer 1

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Answer 2

Let Inner radius be r and outer be R

We are given 2Л[R-r] = 396-352
                       2*22/7[R-r] = 44
                        Width = 44*7/22*2 = 7 m