state gov TSPSC DAO (Divisional Accounts Officer) Mock Test 2024 Quantitative Aptitude Ratio and Proportion
The number of students in class IX and class X is 42 and 45, respectively. The ratio of the number of boys to girls in classes is IX and X is 9 : 5 and 8 : 7, respectively. What is the difference between the total number of boys and the total number of girls in both the classes taken together?
1
11
2
12
3
17
4
15