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by pranayece » Mon Jul 27, 2015 1:03 am
Five different roads join a village to the nearby city. The number of different ways in which a person

can go to the town and come back is:
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by GMATGuruNY » Mon Jul 27, 2015 4:03 am
pranayece wrote:Five different roads join a village to the nearby city. The number of different ways in which a person

can go to the town and come back is:
Number of ways to travel from the city to the village = 5. (Any of the 5 roads.)
Number of ways to travel from the village back to the city = 5. (Any of the 5 roads.)
To combine these options, we multiply:
5*5 = 25.
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by Brent@GMATPrepNow » Mon Jul 27, 2015 6:50 am
I thought I'd mention that Mitch applied the Fundamental Counting Principle (FCP) top solve this question.
The FCP can be used to solve the MAJORITY of counting questions on the GMAT. For more information about the FCP, watch our free video: https://www.gmatprepnow.com/module/gmat-counting?id=775

Then you can try solving the following questions:

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Brent
Brent Hanneson - Creator of GMATPrepNow.com
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by nikhilgmat31 » Wed Jul 29, 2015 12:10 am
since he can take a same way for roundtrip.

5 * 5 = 25

if he must select a different way to return then number of ways = 5 * 4 = 20
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