the ratio of number of girls and boys in the colloge is 7:8. if the percentage increases in the number of boys and girls be 20 percentage and 10 percentage. what will be the new ratio?
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Originally, let the number of boys and girls in the college be 7x and 8x respectively
Their increased number is (120% of 7x) and (110% of 8x)
⇒(120100×7x)and(110100×8x)⇒42x5and44x5∴Therequiredration=42x5:44x5=21:22
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