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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Answered by
2
7x = 8+5x
2x = 8
x = 4
7*4 = 28
5*4 = 20
Total = 28+20 = 48
2x = 8
x = 4
7*4 = 28
5*4 = 20
Total = 28+20 = 48
Answered by
0
Let the number of boys be 7x and girls be 5x.
According to the question,
7x = 5x + 8
⇒ 7x – 5x = 8
⇒ 2x = 8
⇒ x = 8/2
⇒ x = 4
Therefore, Number of boys = 7×4 = 28
And, Number of girls = 5×4 = 20
Total number of students = 20+28 = 48
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