There are 1,500 students in a school. 65% of them are girls. How many girls are there in the school?

1 answer:

3 0

First you have to multiply 1,500 by 65%. A way to do that is 1,500 x 65 and then divide by 100.
So 1,500 x 65 is 97,500.
97,500 divided by 100 is 975.
The final answer is that there are 975 girls in the school.

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Choice B does not have these dots, so that's why choice B is not the answer. If we replaced the infinity symbol with 7, then choice B would be the answer.

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$\displaystyle \sum_{n=3}^{7} (2n+5) = 11+13+15+17+19$