SOLUTION: Bob travels in an airplane a distance of 1860 miles. For one- third of distance, the airplane flies at a speed of 560 miles per hour, and for the rest of the distance, it flies at

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Question 1159470: Bob travels in an airplane a distance of 1860 miles. For one- third of distance, the airplane flies at a speed of 560 miles per hour, and for the rest of the distance, it flies at a speed of 620 miles per hour. How long does the trip take.
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
             SPEED      TIME            DISTANCE

firstpart      560      620/560          620

lastpart       620     1240/620          1240

Total time was 3 hours 6 minutes
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