SOLUTION: A woman drove at a speed of 40mph and returned along the same route at 30mph . If her total travelling time is 1 hour , what was the total number of miles in the round trip?

Question 876218: A woman drove at a speed of 40mph and returned along the same route at 30mph . If her total travelling time is 1 hour , what was the total number of miles in the round trip?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
let the number of miles be x
t= d/r
returning time - going time =1

10x=1200
x=120 the distance in miles
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