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# Two trains start from City A and travel towards City B, which is at a

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Director
Joined: 25 Dec 2018
Posts: 607
Location: India
Concentration: General Management, Finance
GMAT Date: 02-18-2019
GPA: 3.4
WE: Engineering (Consulting)
Two trains start from City A and travel towards City B, which is at a  [#permalink]

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10 Mar 2019, 09:13
00:00

Difficulty:

55% (hard)

Question Stats:

58% (02:30) correct 42% (02:41) wrong based on 12 sessions

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Two trains start from City A and travel towards City B, which is at a distance of 100 miles from City A, at the same time with an average speeds of 60 miles per hour and 80 miles per hour respectively. A train starts from City B at the same time and travels towards City A at an average speed of 70 miles per hour. How far from city B is the slower train starting from City A when the faster train starting from City A meets the train starting from City B?

A)30 miles

B)40 miles

C)50 miles

D)60 miles

E)70 miles
Senior Manager
Joined: 25 Feb 2019
Posts: 333
Re: Two trains start from City A and travel towards City B, which is at a  [#permalink]

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10 Mar 2019, 09:20
1
IMO D .

the time when faster train from A will meet the train from B = 100/(70+80)

where 70+80 is the relative speed .

= 10/15 hours

so slower train from A will be 60*10/15 km from A = 40 km

so from B it will be 60 Km

Posted from my mobile device
Re: Two trains start from City A and travel towards City B, which is at a   [#permalink] 10 Mar 2019, 09:20
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