SOLUTION: Ching leaves San Francisco and travels toward Los Angeles at 50mi/h. An hour later, Phil leaves Los Angeles and travels toward San Francisco at 60mi/h. If the two cities are 380 mi

Question 127407: Ching leaves San Francisco and travels toward Los Angeles at 50mi/h. An hour later, Phil leaves Los Angeles and travels toward San Francisco at 60mi/h. If the two cities are 380 miles apart, how many hours will it take for Ching to meet Phil?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
when Phil leaves, he and Ching are 330 mi (380-50) apart

they travel towards each other at 110 mph (60+50)

so it takes 3 hr (330/110) for Phil to meet Ching

BUT __ Ching had been traveling for an hour before Phil left
__ so it takes Ching 4 hr (3+1) to meet Phil
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