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? Choose the correct choice from the following answers.
A) 25.25 s B) 17.45 s C) 35.75 s D) 41.45 s E) none of these

Rationale: let the distance between each pole be x m . then , the distance up to 12 th pole = 11 xm speed = 11 x ⁄ 24 m / s time taken to covers the total distance of 19 x = 19 x × 24 / 11 x = 41.45 s answer d
Answer: D