

Ratio and Proportion - General Aptitude
Q1: 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 will be the new ratio?A 8 : 9
B 17 : 18
C 21 : 22
D Cannot be determined
ANS:C - 21 : 22 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).
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