In a certain school , the ratio of boys to girl is 7:5. if there are 2400 student in the school , then how many girls. one there in the school?
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The sum of the term in the ratio = 7+5 =12
Number of girls =5/12 of 2400
=5/12×2400
=1000 girls
Number of boys =7/12 of 2400
=7/12×2400
1400 boys
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