How many students appeared in at least two exams?

What is the ratio of the number of boys participated from school A to the number of girls participated from school C?

Find the ratio between X and Y.

What is the ratio between the sum of the number of girls and boys in school A and the number of teachers in school C?

Find the total Cost Price of masks for all the companies together.

Find the ratio of number of Green apples sold by ‘P’ and ‘S’ respectively.

Number of males of tribe Raba is what percentage more than the number of males of tribe Dimasa?

What is the difference between the number of students participated from school C and the number of girls participated from school A and B together?

If 30% of the girls who attended seminar on topic B are married, then find the number of girls who are unmarried from the same seminar topic.