There are 6 girls at the summer camp. The number was calculated using the ratio of boys to girls, 7:2, and the known quantity of 21 boys. ;
There are 6 girls at the summer camp, calculated from the boys to girls ratio of 7:2 and the given 21 boys. By finding how many times the ratio fits in the boys' count and multiplying by the girls' part of the ratio, we reached the conclusion. The calculation confirmed there are 6 girls based on the established ratio.
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