SOLUTION: Lois Lane leaves Metropolis driving 50 MPH. Three hours later, Superman leaves the city to catch her. If he is flying at 300 MPH, how long will it take for him to catch up with loi

Question 403395: Lois Lane leaves Metropolis driving 50 MPH. Three hours later, Superman leaves the city to catch her. If he is flying at 300 MPH, how long will it take for him to catch up with lois?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Lois Lane leaves Metropolis driving 50 MPH. Three hours later, Superman leaves the city to catch her. If he is flying at 300 MPH, how long will it take for him to catch up with lois?
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She's 150 miles away (50*3)
He gains on her at 250 mph (300 - 50)
150 mi/250 mph = 0.6 hours
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*** He gains on her at 250 mph (300 - 50) is more accurately stated, "His speed relative to LL is 250 mph."

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