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A race track is in the form of a ring whose inner circumference is 353m, and the outer circumference is 396m. Find the width of the track.




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The radius of the inner track = circumference / 2π  = 353 * 7/22*2 m
Radius of the outer track = 396 * 7 / 22*2 m

Width of the track is the difference between the radii = 6.84 meters

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Let, inner radius=r
outer radius=R
inner circumference=2πr
outer circumference=2πR
440= 2πR
width of road=R-r
width of road=70-35
width of road=35m Ans

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