There are 124 girls and boys altogether.
25 of the number of girls is 16 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 = 2 u - 16
Number of children
= 5 u + 2 u - 16
= 7 u - 16
7 u - 16 = 124
7 u = 124 + 16
7 u = 140
1 u = 140 ÷ 7 = 20
Number of girls
= 5 u
= 5 x 20
= 100
(b)
Number of boys
= 124 - 100
= 24
Number of more girls than boys
= 100 - 24
= 76
Answer(s): (a) 100; (b) 76