Math, asked by satyark8536, 9 months ago

The number of ways in which 9 letters can be divided into thrice groups containing 2,3 and 4 things respectively is

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Answered by ronaldoChristiano

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the number of ways in which 9 things can be divided into twice groups containing 2,3 and 4 things respectively is ? Hence the number of ways = 9C2 × 7C3 × 4C4 = 1260.

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