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In a workshop there are 4 kinds of beds, 3 kinds of closets, [#permalink]
17 Jan 2006, 17:06

00:00

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Difficulty:

(N/A)

Question Stats:

100% (02:09) correct
0% (00:00) wrong based on 4 sessions

1. In a workshop there are 4 kinds of beds, 3 kinds of closets, 2 kinds of shelves and 7 kinds of chairs. In how many ways can a person decorate his room if he wants to buy in the workshop one shelf, one bed and one of the following: a chair or a closet?

Re: PS Permutation and combination [#permalink]
18 Jan 2006, 22:30

sperumba wrote:

1. In a workshop there are 4 kinds of beds, 3 kinds of closets, 2 kinds of shelves and 7 kinds of chairs. In how many ways can a person decorate his room if he wants to buy in the workshop one shelf, one bed and one of the following: a chair or a closet?

a) 168. b) 16. c) 80. d) 48. e) 56.

Bed 4
Closets 3
Shelves 2
Chairs 7

One Shelf = 2c1 = 2
One Bed = 4c1= 4
One closets or chairs = 10c1 = 10

total 2*4*10 = 80

gmatclubot

Re: PS Permutation and combination
[#permalink]
18 Jan 2006, 22:30

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