There are 20 poles with a constant distance between each pole.

There are 20 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole . How much time will it take to reach the last pole?

Quiz

Answer/Solution

41.45 s

Steps/Work

Let the distance between each pole be x m.
Then, the distance up to 12th pole = 11 xm
Speed = 11x⁄24 m/s
Time taken to covers the total distance of 19x
= 19x×24/11x=41.45s
Answer D

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There are poles with a constant distance between each pole. A car takes seconds to reach the th pole. How much time will it take to reach the last pole?

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