SOLUTION: : Distance between City A and City B is 60 kilometres. A driver should go from City A to City B for 1 hour. If first 30 kilometres the driver drives with 30 km/h what should be hi

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Question 458996: : Distance between City A and City B is 60 kilometres. A driver should go from City A to City B for 1 hour. If first 30 kilometres the driver drives with 30 km/h what should be his speed during last 30 kilometres so he arrives in City B on time?
Answer by ankor@dixie-net.com(15657) About Me  (Show Source):
You can put this solution on YOUR website!
Distance between City A and City B is 60 kilometres.
A driver should go from City A to City B for 1 hour.
If first 30 kilometres the driver drives with 30 km/h, what should be his speed during last 30 kilometres so he arrives in City B on time?
:
You can see this is not possible. The first 30 km at 30 km/hr, will take one hr
So he has 0 time to drive the 2nd 30 km