SOLUTION: A starts travelling from London to Paris at 8AM at 60mph. B starts following Aat 11am and catches A in 4 hours. What is Average speed of B?? Jane travels 60mph at 30mph and anot

Question 1038783: A starts travelling from London to Paris at 8AM at 60mph. B starts following Aat 11am and catches A in 4 hours. What is Average speed of B??
Jane travels 60mph at 30mph and another 90mph at 30mph what is average velocity for entire trip
Answer by josgarithmetic(39626) (Show Source): You can put this solution on YOUR website!
Choose to handle time quantities instead of points on a time line.

                  SPEED      TIME      DISTANCE
traveler A         60         4+3        d
traveler B         r           4         d

Follow the description and examine how the data table matches.

because the two expressions for d are equal.

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