Teaching CTET (Paper 1 & Paper 2) Mock Test Series 2025 Quantitative Aptitude Ratio and Proportion Simple Ratios
The ratio of number of boys to the number of girls in a college of 720 students is 4 ∶ 5. If 20 new girls are joined in the college, find how many new boys may be admitted so that the ratio of the number of boys to the number of girls may change to 4 ∶ 3.
1
140
2
80
3
240
4
40