Posted by MARIAH on Wednesday, March 9, 2011 at 8:49pm.
A truck enters a highway driving 60mph. A car enter the highway at the same place 14 minutes later and drives 66mph in the dame direction. From the time the car enters the highway, how long will it take the car to pass th truck?

MATH  Henry, Friday, March 11, 2011 at 3:04pm
d1 = d2,
14min = 14/60 = 0.2333h.
60t = 66(t  0.2333),
60t = 66t  15.4
60t  66t = 15.4,
6t = 15.4,
t = 2.57h.
t  0.2333 = 2.57  0.2333 = 2.33h to
catch up.
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