Question 874694: Cars A and B travel down the same road. A's speed
is r km/h and B's speed is s km/h (A's speed is less than B's)
When will B overtake A? t=A's time.
Both cars are d km's apart.
If a and b start toward each other how much later will they meet?
Thank you.
Answer by josgarithmetic(39616)   (Show Source):
You can put this solution on YOUR website! You are asking two different questions. I will help for your first question.
Basic Rule is RT=D for rate, time, distance.
given  . Car B at speed s must close the initial separation of d kilometers, since car B is d kilometers behind car A.
________________speed_________time_________distance
Car A____________r_____________t___________rt-d
Car B____________s_____________t___________st
Think about the description above the data table, and how the information is arranged in the data table; and when you are comfortable, you can continue looking at the arithmetic solution steps.
 , or equivalently,  .
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When car B reaches and overtakes car A, mostly the focus on the rate of approach, relying just on the two rates, r and s.
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