ages will be so years,
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?
creandfather and 20 years
Answers
Answered by
11
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 strenght of the class?
Let,
The number of boys = 7x and the number of girls =5x.
According to the condition,
7x = 5x + 8
2x = 8
x = 4
Therefore The number of boys = 7x = 7 × 4 = 28 and the number of girls =5x = 5 × 4 = 20.
Therefore total strength of the class = 28 + 20 = 48
Answered by
3
Answer:
No.of girls=5x
No.of boys=7x
According to question,
7x=5x+8
2x=8
x=4
No.of girls=5*4=20
No.of boys=7*4=28
total class strength=20+28=48
Similar questions