In racing over a given distance d at uniform speed, A can beat B by 20 meters, B can beat C by 5 meters, and A can beat C by 24 meters. What is the distance d in meters?	Select the correct option: A) 70 B) 80 C) 90 D) 100 E) 120
When A is at the finish line, B is 20 meters back, and C is 24 meters back.   When B runs another 20 meters to the finish line, C is 5 meters back.   So B gains 1 meter on C every 20 meters covered.   To gain a final difference of 5 meters, B runs a total of 100 meters.   The answer is 100.
<result>D</result>
In racing over a given distance d at uniform speed, A can beat B by 20 meters, B can beat C by 5 meters, and A can beat C by 24 meters. What is the distance d in meters?