permutation and combination

Calculate number of ways
(a) 5 children can be divided into group of 2 and 3,(ans: 10)
(b) 9 children can be divided into group of 5 and 4,(ans: 126)
Hence calculate number of ways in which 9 children can be divided into groups of 2,3 and 4.(ans: 1260)

thank for tour time and help

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Originally Posted by nikk

Calculate number of ways
(a) 5 children can be divided into group of 2 and 3,(ans: 10)
(b) 9 children can be divided into group of 5 and 4,(ans: 126)
Hence calculate number of ways in which 9 children can be divided into groups of 2,3 and 4.(ans: 1260)

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You have the answers, so what is the question?
Do you want to know how?

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Originally Posted by Plato

You have the answers, so what is the question?
Do you want to know how?

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i don't no how to calculate it sir.tq for your step. how abour a&b

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Originally Posted by nikk

i don't no how to calculate it sir.tq for your step. how abour a&b

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If that is true then why are you asked to do these problems?