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Method of Substitution to Find the Solution of a Pair of Linear Equations

There are 7 g...

Question

There are 7 girls in a class room. Ashwini is one of them. In how many ways a committee of 5 be formed so as to exclude Ashwini?

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Solution

Number of girls excluding Ashwini = 7 − 1 = 6

∴Number of ways of forming a committee of 5 so as to exclude Ashwini

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Method of Substitution to Find the Solution of a Pair of Linear Equations

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