Question 26052
Let "x" be the number of girls born in a year.
Then number of girls will be x+3%x=1.03x
EQUATION:
#of girls + #of boys =100
    x + 1.03x=100
       2.03x=100
           x= 49.26
You have to round this off to 49 girls and 51 boys in 100.

Cheers,
Stan H.