SOLUTION: A runs around a circular track in one minute. If A and B start from the same place but in opposite directions, how fast must B run in order to meet A in 20 seconds?
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Question 339352: A runs around a circular track in one minute. If A and B start from the same place but in opposite directions, how fast must B run in order to meet A in 20 seconds? Answer by nyc_function(2741) (Show Source):
You can put this solution on YOUR website! A runs round in 1 minute.
If B runs at the same speed as A , they will meet in 30 seconds.
If they have to meet in 20 seconds B has to run faster.
A would have covered 1/3 in 20 seconds
B has to cover 2/3 in 20 seconds for them to meet.
So, B has to run twice as fast as A ANSWER.
