the number of boys and girls in a class are in the ratio 7 ratio 5 the number of boys is 8 more than the number of girls what is the total car class strength
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the answer is 48 ...i.e. total strength of the class
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7÷5=x÷y x=y+8 (y+8)/y=7/5 7y=5y+40 2y=40 girls=20 boys=28 total48
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