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8Â years, 11Â months ago
8Â years, 11Â months ago
Hi Diwas,
I think there's a small error in the question. X beats Y by 20 meters and Z by 30 meters, and Y beats Z by 12 meters.
Let the distance be 'd'
Ratio of speeds of X, Y and Z = d : d-20 : d-30
Ratio of speeds of Y and Z = d : d-12
=> (d-20)/(d-30) = d/(d-12) => d = 120 meters
So, length of the race = 120 meters
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