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rchadha
Joined: 01 Aug 2005
Posts: 4
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 Posted: Mon Aug 01, 2005 11:40 pm Post subject: Which shortcut to use for..... |
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| How many albums can be made from a repertoire of 4 rocks songs, 5 pop and 6 jazz songs such that there is atleast one rock and one pop in each album? |
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shaji
Serious about CAT
Joined: 22 May 2005
Posts: 71
Location: UK
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| Posted: Tue Aug 02, 2005 11:39 am Post subject: Re: Which shortcut to use for..... |
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| rchadha wrote: | | How many albums can be made from a repertoire of 4 rocks songs, 5 pop and 6 jazz songs such that there is atleast one rock and one pop in each album? |
Hi;
Shortcut is:
(2^4 -1)*(2^5 -1)*2^6=15*31*64=29760.
Regards;
Shaji. |
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