other govt exam CBSE Junior Assistant Mock Test 2025 Quantitative Aptitude Ratio and Proportion Direct or Indirect Proportion
The ratio of the number of boys to the number of girls in a school of 640 students, is 5 : 3. If 30 more girls are admitted in the school, then how many more boys should be admitted so that the ratio of boys to that of the girls, becomes 14 : 9.
1
20
2
15
3
25
4
30