Correct Answer - Option 3 : 1 : 1
The ratio of boys and girls in a college was 5 : 4. New students admitted and the number of boys went up by 20% and the number of girls went up by 50%
Let the number of boys and girls initially be 5x and 4x.
Hence, after new students admitted, number of boys = 5x × 120% = 6x
And, number of girls = 4x × 150% = 6x
New ratio of boys and girls = 6x : 6x = 1 : 1
∴ the correct answer is 1 : 1.