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#### Permutation question

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 Post subject: Permutation question  Posted: Thu Apr 28, 2011 4:38 am
 Students

Posts: 69
 Dear experts,Please have a look at the below question -In how many of ways can 5 balls be placed in 4 tins if any number of balls can be placed in any tin?(A) 5C4(B) 5P4(C) 5^4(D) 4^5(E) 5^5Source : Nova Maths BibleOA: DI think the answer should be C. Since 1 tin can five balls, 4 tins can have 5.5.5.5 = 5^4Please let me know your thoughts.Regards,Ankit Saxena

 Post subject: Re: Permutation question  Posted: Mon May 02, 2011 2:59 pm
 ManhattanGMAT Staff

Posts: 4462
Location: Southwest Airlines, seat 21C
 invalid question. sorry. we have to know more about the balls; are they identical i.e. indistinguishable, or does it matter which ball is in which tin? do yourself a favor and stick to GMAT questions and MGMAT questions, and you won' have to deal with questions that don't actually work.. _________________Tim SandersManhattan GMAT Instructor

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