SOLUTION: The ratio of boys to girls in a school is 2:3 there are 1100 pupils how many are girls

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Question 987116: The ratio of boys to girls in a school is 2:3 there are 1100 pupils how many are girls
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
Rule of ratios to fractions:

The ratio of A:B means 

1. the fraction corresponding to A is A%2F%28A%2BB%29
2. the fraction corresponding to B is B%2F%28A%2BB%29

So the fraction of girls is 3%2F%282%2B3%29%22%22=%22%223%2F5

Multiply 1100 × 3%2F5 = 660 girls 


Edwin