The number of boys and girls in a class are in the ratio 7:5.If the number of boys is 8 more than the number of girls. What is the total class strength?

The number of boys and girls in a class are in the ratio 7:5.If the nu

1.	The number of boys and girls in a class are in the ratio 7:5.If the number of boys is 8 more than the number of girls. What is the total class strength?
Answer» The RATIO of gírls and BOYS - 7:5Number of boys more than gírls = 8To find :the total CLASS strengthSolution :Let the no of boys be 7x and no of gírls be 5x.⇒ Let's find the total class STRENGTH.7x = 5x + 87x - 5x = 82x = 8x = 8/2= 4 → No of gírls = 5x = 5 × 4= 20 gírls→ No of boys = 7x= 7 × 4= 28 boys✳ Total Strength = No of boys + No of gírls= 28 + 20= 48Therefore, the total strength of class is 48.