In how many ways can word "computer" be arranged so that vowels occupy the even positions?
OA 2,880
Please explain
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COMPUTER & vowels position
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caspermonday
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xcusemeplz2009
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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
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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caspermonday
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Thanks! Didn't quite get this thing..xcusemeplz2009 wrote: 3 things can be arranged in 4 places in 4! ways
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xcusemeplz2009
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its similar to 3 thing has to be placed in 4 placescaspermonday wrote:Thanks! Didn't quite get this thing..xcusemeplz2009 wrote: 3 things can be arranged in 4 places in 4! ways
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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caspermonday
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gmatplayer
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