There are 106 girls and boys altogether.
45 of the number of girls is 11 more than the number of boys.
- How many girls are there?
- How many more girls than boys are there?
(a)
Number of girls = 5 u
Number of boys = 4 u - 11
Number of children
= 5 u + 4 u - 11
= 9 u - 11
9 u - 11 = 106
9 u = 106 + 11
9 u = 117
1 u = 117 ÷ 9 = 13
Number of girls
= 5 u
= 5 x 13
= 65
(b)
Number of boys
= 106 - 65
= 41
Number of more girls than boys
= 65 - 41
= 24
Answer(s): (a) 65; (b) 24