In class V, there are 14 boys and 7 girls. The teacher wants to select either a boy or a girl as the class leader. In how many ways can the teacher select the class leader?
21

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Solution

The correct option is A 21
In the first choice, the teacher can select a boy among 14 boys in 14 ways (who ever may be of the 14 boys).
In the second choice, the teacher can select a girl among 7 girls in 7 ways (who ever may be of the 7 girls).
Hence, the teacher can select the class leader who is a boy or a girl in 21 different ways (14 boys + 7 girls).

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In class V, there are 14 boys and 7 girls. The teacher wants to select either a boy or a girl as the class leader. In how many ways can the teacher select the class leader?21

In class V, there are 14 boys and 7 girls. The teacher wants to select either a boy or a girl as the class leader. In how many ways can the teacher select the class leader?
21