In racing over a given distance d at uniform speed, A can beat B by 30 meters, B can beat C by 8 meters, and A can beat C by 37 meters. What is the distance d in meters?
Choose the correct answer
A) 160 B) 180 C) 200 D) 220 E) 240
When A is at the finish line, B is 30 meters back, and C is 37 meters back.   When B runs another 30 meters to the finish line, C is 8 meters back.   So B gains 1 meter on C every 30 meters covered.   To gain a final difference of 8 meters, B runs a total of 240 meters.   The answer is 240.
<result>E</result>
In racing over a given distance d at uniform speed, A can beat B by 30 meters, B can beat C by 8 meters, and A can beat C by 37 meters. What is the distance d in meters?