There are 20 poles with a constant distance between each pole. A car takes 22 second to reach the 12th pole. How much will it take to reach the last pole.
Choose the correct choice from the following options:
A) 38	B) 41	C) 28	D) 88	E) 22

Rationale: "assuming the car starts at the first pole . to reach the 12 th pole , the car need to travel 11 poles ( the first pole does n ' t count , as the car is already there ) . 11 poles 22 seconds 1 pole ( 22 / 11 ) seconds to reach the last ( 20 th ) pole , the car needs to travel 19 poles . 19 pole 19 x ( 22 / 11 ) seconds = 38 seconds answer : a"
Answer: A