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 120 kilometers per hour. At what speed, in kilometers per hour, is the car traveling? Options
A) 121.5	B) 122	C) 122.5	D) 113	E) 112.5
112.5   120 * T = 1 km =&gt; T = 1/120 km/h   V*(T+2/3600) = 1   V (1/120 + 2/3600) = 1 =&gt; V = 112.5 km/h
<result>E</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 120 kilometers per hour. At what speed, in kilometers per hour, is the car traveling?