Teaching BSSTET Special Educator (Paper 1 & 2) Mock Test 2024 Quantitative Aptitude Ratio and Proportion
In a class, ratio of number of boys to that of girls is 2 ∶ 3. When three boys leave the class and 3 new girls join the class, the ratio becomes 3 ∶ 7. How many girls were there in the class initially ?
1
6
2
10
3
12
4
18