Two cars are driving toward each other. The first car is traveling at a speed of 60 km/h, which is 25% slower than the second car's speed. If the distance between the cars is 770 km, how many hours will it take until the two cars meet? Choose the correct option.
A) 4	B) 4.5	C) 5	D) 5.5	E) 6
The speed of the first car is 60 km/h.   The speed of the second car is  60 / 0.75= 
<gadget id="calculator"> 60 / 0.75</gadget>
<output>80</output>
80 km/h.   The two cars complete a total of 140 km each hour.   The time it takes the cars to meet is   770 / 140= 
<gadget id="calculator">  770 / 140</gadget>
<output>11/2 = around 5.5</output>
5.5 hours.   The answer is 5.5.
<result>D</result>
Two cars are driving toward each other. The first car is traveling at a speed of 60 km/h, which is 25% slower than the second car's speed. If the distance between the cars is 770 km, how many hours will it take until the two cars meet?