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  • In a class there are 27 boys and 14 girls. The teacher wants to select 1 boy and 1 girl to represent a competition. In how many ways can the teacher make this selection?

In a class there are 27 boys and 14 girls. The teacher wants to select 1 boy and 1 girl to represent a competition. In how many ways can the teacher make this selection?

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Select 1 boy out of 27 and 1 girl out of 14 girls. so the number of ways to make this selection= ^{27}C_1 \times ^{14}C_1 =27 \times 14 =378

Posted by

Ravindra Pindel

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