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28 Mar 2017, 02:51
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C
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Difficulty:
5%
(low)
Question Stats:
90% (00:47) correct
10%
(01:31)
wrong
based on 143
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Two trains are heading toward each other on a 750-kilometer straight track. One train is heading due east at 70 kilometers per hour and the other train is heading due west at 80 kilometers per hour. How much time do the conductors have before the trains collide?
A. 3 hours
B. 4 hours
C. 5 hours
D. 9 hours
E. 11 hours
A. 3 hours
B. 4 hours
C. 5 hours
D. 9 hours
E. 11 hours
28 Mar 2017, 03:05
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Both train will collide after 750/80+70= 5 hours later , so option c should be the answer
Sent from my HM 1S using GMAT Club Forum mobile app
Sent from my HM 1S using GMAT Club Forum mobile app
