when 6 boys were admitted amp 6 girls left the, Mathematics

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when 6 boys were admitted amp 6 girls left the

When 6 boys were admitted & 6 girls left the percentage of boys increased from 60% to 75%. Find the original no. of boys and girls in the class.

Ans: Let the no. of Boys be x

Girls be y

Total = x + y

APQ:

x/x + y = 60/100 ---------------(1)

x + 6/( x + 6)( y - 6) = 75/100

On solving we get,

x = 24 and y = 16.

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