Posted by carr on Tuesday, October 12, 2010 at 4:22pm.
Cindy starts at 2pm, when Eric has already been cycling for two hours.
Distance apart at 2pm = 150-2*18
=114 miles
The sum of their speeds
=18+12
=30 mph
They will meet when the distance divided by the total speed equals 114 miles, or
time = 114/30 = 3.8 hours after 2 pm.
Distance travelled by each would be time * speed of each.
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