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COMPUTER & vowels position

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by xcusemeplz2009 » Sun Oct 25, 2009 9:13 am
total number of letters =8

no. of vowels=3

no. of even places =4

3 things can be arranged in 4 places in 4! ways

alphabet left=5
no. of places left=5
no. of arrangements=5!

ans 5!*4!=120*24=2880
It does not matter how many times you get knocked down , but how many times you get up
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by caspermonday » Sun Oct 25, 2009 9:23 am
xcusemeplz2009 wrote: 3 things can be arranged in 4 places in 4! ways
Thanks! Didn't quite get this thing..
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by xcusemeplz2009 » Sun Oct 25, 2009 9:29 am
caspermonday wrote:
xcusemeplz2009 wrote: 3 things can be arranged in 4 places in 4! ways
Thanks! Didn't quite get this thing..
its similar to 3 thing has to be placed in 4 places

1st thing has 4 option
2nd has 3 option
3rd has 2 option

tot to arrange 3 things in 4 places=4*3*2=4!
It does not matter how many times you get knocked down , but how many times you get up
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by caspermonday » Sun Oct 25, 2009 9:31 am
Get it, thanks!
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by gmatplayer » Sun Oct 25, 2009 10:12 am
Goodone! I missed that
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