Problem Solving
试题详情
题目：
A car traveling at a certain constant speed takes 2 seconds longer to travel 1 kilometer than it would take to travel 1 kilometer at 75 kilometers per hour. At what speed, in kilometers per hour, is the car traveling?
选项:
A、71.5
B、72
C、72.5
D、73
E、73.5
答案:
B
