JEE MATHEMATICS MCQ: PERMUTATIONS

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There are 20 students in a class, in which 12 boys and 8 girls. The class teacher select either a boy or a girl for monitor of the class. In how many ways, the teacher can make this selection?

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Correct option: D

Option D (20) is correct because the teacher can select either a boy or a girl, and the total number of ways is the sum of the number of boys and girls.

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