Civil Services OPSC OAS Mock Test Series 2025 Quantitative Aptitude Ratio and Proportion Simple Ratios
Gagan has a total of 30 marbles, out of which 18 are red and 12 are blue. Jane has a total of 20 marbles, all of which are red or blue. If the ratio of red to blue marbles is the same for both Gagan and Jane, then how many more blue marbles does Gagan have than Jane?
1
8
2
10
3
6
4
4