A class has 4 more girls than boys. On a day when
only 8 boys were absent, the number of girls was
twice that of boys. How many boys and girls are
there in the class?
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Let no. of boys in the class be x,∴ no. of girls =x+4
When no. of boys present in a class = x−8 then no. of girls =2×no. of boys=2(x−8)
No. of girls =x+4=2(x−8)⇒2x−x=16+4⇒x=20
No. of boys =x=20
No. of girls =x+4=20+4=24
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