GMAT Quantitative Reasoning Practice Test 4

Question : 90 of 100

Marks: +1, -0

In the Hillside summer camp there are 50 children. 90% of the children are boys and the rest are girls. The camp administrator decided to make the number of girls only 5% of the total number of children in the camp. How many more boys must she bring to make that happen?

Validate

Solution:

The total number of girls in the camp is

(0.1 × 50=5)

. In order for 5 girls to be

5 \%

there has to be a total number of 100 kids in the camp therefore the camp's administrator should bring 50 more boys.

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