Question

The number of boy ,girl in a class are in the ratio 7:5 the number of boy is 8 more than the number of girl. What is the total class strength.​

Answer 1

$\huge\bold{Solution :}$

✬ Total Strength = 48 ✬

Step-by-step explanation :-

$\huge\bold{Given :-}$

• Ratio boys and girls in the class is 7 : 5.
• number number of boys is 8 more than the number of girls.

$\huge\bold{To \:Find :-}$

• What is the total class strength ?

Solution : Let assume that x is the common in given ratios. so,

➟ Boys = 7x..........(i)

➟ Girls = 5x

A/q

Boys = 8 more than 5x

Boys = (5x + 8)..........(ii)

➬ Equation 1 = 2

⟹ 7x = 5x + 8

⟹ 7x - 5x = 8

⟹ 2x = 8

⟹ x = 8/2

⟹ x = 4

Now put the value of x in above ratios.

• Boys = 7 × 4 = 28

• Girls = 5 × 4 = 20

.°. Class strength = Boys + Girls

➙ 28 + 20

➙ 48

Hence, total class strength / number of students is 48.

Hope it's helpful :)

Answer 2

ye le 13th solve krde pls