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anonymous
 one year ago
counting question
anonymous
 one year ago
counting question

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If the 5 cards shown above are placed in a row so that [5] is never at either end, how many different arrangements are possible? The answer is 72...but I don't know how they got the answer...

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2forget about the given restriction how many total ways can you arrange 5 cards in a row ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0[3] [2] [5] [9] [7] every one of this is card

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how i solve it by calc plz

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2dw:1441093148752:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2initially you have 5 cards available, so you can choose the first card in 5 ways after that, you can choose the second card in 4 ways after that, you can choose the third card in 3 ways after that, you can choose the fourth card in 2 ways after that, you can choose the fifth card in 1 ways dw:1441093246604:dw so total number of ways of arranging 5 cards in a row = \(5*4*3*2*1 = 120\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2\(120\) is the total number of arrangements with out any restrictions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what of meaning of teamvier i m new in open study

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The answer is 72...but I don't know how they got the answer not 120 i too keep the answer 120

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2120 is not the answer 120 is the total number of ways of arranging the given 5 cards with out any restrictions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok how i keep the answer

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2lets find number of arrangements in which the first card is [5]

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2if you fix the first card as [5], how many ways can you fill in remaining 4 positions ? dw:1441093931611:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2Yes, so there are 24 ways in which the first card can be [5]

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2similarly how many ways there such that last card is [5] ?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2dw:1441094262332:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2so 24 ways in which first card is [5] and 24 ways in which last card is [5] thats 48 ways which we don't want

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2subtract that from the total ways, 120

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks man u are the best

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but what of meaning of teamvier i m new in open study
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