CTET 2 Math and Science 11 Jan 2023 Paper

Question : 39 of 150

Marks: +1, -0

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 ?