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 225 kilometers per hour. At what speed, in kilometers per hour, is the car traveling?
Answers: A) 220 B) 200 C) 210 D) 225 E) 230
200   225 * T = 1 km =&gt; T = 1/225 km/h   V*(T+2/3600) = 1   V (1/225 + 2/3600) = 1 =&gt; V = 200 km/h
<result>B</result>
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 225 kilometers per hour. At what speed, in kilometers per hour, is the car traveling?