There are 10 intermediate stations including two junctions A

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GMATinsight: Legendary Member; Posts: 1100; Joined: Sat May 10, 2014 11:34 pm; Location: New Delhi, India; Thanked: 205 times; Followed by:24 members

There are 10 intermediate stations including two junctions A

by GMATinsight » Sun May 28, 2017 8:35 pm

There are 10 intermediate stations including two junctions A and B .In how many different ways can a metro train have stoppages at 3 different stations such that no two stations are consecutive (including the junctions A and B) ?
(A) 105
(B) 97
(C) 57
(D) 49
(E) 48

Source: https://www.GMATinsight.com

Answer: Option E

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Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pm; Location: Vancouver, BC; Thanked: 5254 times; Followed by:1268 members; GMAT Score:770

by Brent@GMATPrepNow » Mon May 29, 2017 3:23 pm

You might want to re-word that question. It's unclear what you're asking.

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Matt@VeritasPrep: GMAT Instructor; Posts: 2630; Joined: Wed Sep 12, 2012 3:32 pm; Location: East Bay all the way; Thanked: 625 times; Followed by:119 members; GMAT Score:780

by Matt@VeritasPrep » Mon Jun 05, 2017 10:53 pm

Agreed, you'll want to clarify whether one can stop at a junction, and whether the junctions are considered stations or not.

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