SOLUTION: at noon a private plane left austin for los angeles, 2100 km away, flying ant 500 km/hr. One hour later a jet left Los angeles for austin at 700 km/hr. At what time did they pass e

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: at noon a private plane left austin for los angeles, 2100 km away, flying ant 500 km/hr. One hour later a jet left Los angeles for austin at 700 km/hr. At what time did they pass e      Log On

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Question 420206: at noon a private plane left austin for los angeles, 2100 km away, flying ant 500 km/hr. One hour later a jet left Los angeles for austin at 700 km/hr. At what time did they pass each other?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Plane A speed 500 km/h
Plane B speed 700 km/h
Distance 2100 miles
In 1 hour Plane A has traveled 500 miles before Plane B starts
So distance = 1600
Let time they take to meet be x hours
Time taken to meet is same

t=d/r
combined speed= 1200 mph

1200 x = 1600
x= 1.33 hours
They will meet at 2:33 pm