Question

10. The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8
more than the number of girls. What is the total class strength?
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Answer 1

Step-by-step explanation:

7x=5x+8

7x-5x=8

2x=8

x=4

7x= 7×4=28

5x=5×4=20

28+20=48

Answer 2

Answer:

$\bold {48}$

Step-by-step explanation:

Given :-

• Boys = 7k
• Girls = 5k

$7k = 5k + 8$

→ 7k - 5k = 8

→ 2k = 8

→ k = 8÷2

→ k = 4

Now, Strength = 7k + 5k

→ 12k

→ 12 × 4

→ 48