Two cars are driving towards one another. The first car is traveling at a speed of 120 Km/h, which is 28% faster than the second car. If the distance between the cars is 855 Km, how long will it takes the cars to meet (in hours)?
Choose the correct option
A) 2.5.  B) 3.  C) 3.5  D) 4.  E) 4.5.
Let S be the speed of the slower car.   Then the speed of the faster is 1.28S   1.28S = 120   S = 120/1.28   Cumulative speed/rate = S + 1.28S = 2.28S   Time taken to meet = 855/2.28S =855/213.75= 
<gadget id="calculator">855/213.75</gadget>
<output>4</output>
4hrs   ANSWER:4.
<result>D</result>
Two cars are driving towards one another. The first car is traveling at a speed of 120 Km/h, which is 28% faster than the second car. If the distance between the cars is 855 Km, how long will it takes the cars to meet (in hours)?