The ratio of number of girls to boys in a school of 4500 students is 49:51. How many more girls should be admitted to make the ratio 1:1?

Correct option is B

Ans. (b) 90
Sol. Total students = 4500 Let number of girls = (49/100) × 4500 = 2205 Number of boys = 4500 - 2205 = 2295
To make the ratio 1:1, girls must also be 2295. So, additional girls needed = 2295 - 2205 = 90
Explanation:
· (a) 88 – Too low
· (b) 90 – Correct
· (c) 92 – Too high
· (d) 86 – Also too low