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# Distance between two stations A and B is 778km. A train covers the jou

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Math Expert
Joined: 02 Sep 2009
Posts: 53738
Distance between two stations A and B is 778km. A train covers the jou  [#permalink]

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25 Feb 2019, 00:19
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Question Stats:

60% (00:50) correct 40% (02:51) wrong based on 4 sessions

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Distance between two stations A and B is 778km. A train covers the journey from A to B at 84km per hour and returns back to A with a uniform speed of 56km per hour. Find the average speed of train during the whole journey.

A. 67.2
B. 67.8
C. 68
D. 68.5
E. 70

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Joined: 31 Oct 2013
Posts: 1270
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: Distance between two stations A and B is 778km. A train covers the jou  [#permalink]

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25 Feb 2019, 01:00
Re: Distance between two stations A and B is 778km. A train covers the jou   [#permalink] 25 Feb 2019, 01:00
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# Distance between two stations A and B is 778km. A train covers the jou

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