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The ratio of the number of boys and girls in a college is 7:8.if the percentage increase in the number of boys and girls be 20% and 10% respectively, what

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Ratio = 7 : 8 let number of boys be = 7 x let number of girls = 8 x

increase in number of boys = 7 x * 20/100 = 14 x /10 total number of boys now : 7x + 14 x/10 = 8.4 x

increase in number of girls = 8 x * 10/100 total number of girls now : 8 x + 8 x /10 = 8.8 x