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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Let the number of boys and girls be 7x and 5x.
According to question, number of boys is 8 more than number of girls.
Therefore,
7x = 5x + 8
→ 7x - 5x = 8
→ 2x = 8
→ x = 8/2
→ x = 4
Hence, Number of boys = 7x
= 7×4 = 28.
Number of girls = 5x
= 5×4 = 20.
Total strength in class = 28 + 20
= 48
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