In a class there are 27 boys and 14 girls. The teacher wants to select 1 boy and 1 girl to represent the class in a function.

Question:

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

Solution:

No. of boys in the class = 27

No. of girls in the class = 14

Ways to select a boy = 27

Similarly, ways to select a girl = 14

$\therefore$ Number of ways to select 1 boy and $1 \mathrm{girl}=27 \times 14=378$

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