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In a class, there are 15 boys and 10 gir...

In a class, there are 15 boys and 10 girls. How many ways a teacher can select 1 boy and 1 girl to represent the class at a seminar.

Text Solution

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There are 15 boys and 10 girls in a class.
Teacher has 15 options to select one boy and 10 options to select one girl.
So, using the multiplication rule of counting,
Number of ways of selecting one girl and one boy
`=15xx10=150`
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