SOLUTION: a bus travelling at an average speed of 63km/hr left a station at 8:15a.m. a car later left the same station at 9.00am and caught up with the bus at 10:45am. find the average speed

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Question 1101539: a bus travelling at an average speed of 63km/hr left a station at 8:15a.m. a car later left the same station at 9.00am and caught up with the bus at 10:45am. find the average speed of the car?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Car left 3%2F4 hour after the bus and car traveled for 1%263%2F4 hours to catchup. Bus traveled for 2.5 hours. 
         SPEED           TIME          DISTANCE

BUS          63          2%261%2F2          d

CAR          r           1%263%2F4          d

%281%263%2F4%29r=%282%261%2F2%29%2A63
-
r%287%2F4%29=%285%2F2%2963

r=%285%2A63%2F2%29%284%2F7%29

highlight%28r=90%29kilometers%2Fhour