There are 60 boys and girls altogether.
25 of the number of boys is 17 more than the number of girls.
- How many boys are there?
- How many more boys than girls are there?
(a)
Number of boys = 5 u
Number of girls = 2 u - 17
Number of children
= 5 u + 2 u - 17
= 7 u - 17
7 u - 17 = 60
7 u = 60 + 17
7 u = 77
1 u = 77 ÷ 7 = 11
Number of boys
= 5 u
= 5 x 11
= 55
(b)
Number of girls
= 60 - 55
= 5
Number of more boys than girls
= 55 - 5
= 50
Answer(s): (a) 55; (b) 50