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4 The number of ways of selecting 2 boys AND 2 girls from a group of 4 boys and 5 girls. 2 2 (4)+(2)

4 The number of ways of selecting 2 boys AND 2 girls from a group of 4 boys and 5 girls. 2 2 (4)+(2) (2+5) O(4 x 5 2 x 2

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