SOLUTION: Cars A and B, initially 20 km apart, travel towards each other. If A travels at 60 km/hr and B at 40 km/hr, after how many minutes will they meet?

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Question 909798: Cars A and B, initially 20 km apart, travel towards each other. If A travels at 60 km/hr and B at 40 km/hr, after how many minutes will they meet?
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
Their rate of approach is the sum of their speeds or 60+40=100 km/hr.
Since time = distance/rate, the answer in hours is 20/100 or 1/3 hour
or 12 minutes.

Edwin