There are 151 boys and girls altogether.
37 of the number of boys is 19 more than the number of girls.
- How many boys are there?
- How many more boys than girls are there?
(a)
Number of boys = 7 u
Number of girls = 3 u - 19
Number of children
= 7 u + 3 u - 19
= 10 u - 19
10 u - 19 = 151
10 u = 151 + 19
10 u = 170
1 u = 170 ÷ 10 = 17
Number of boys
= 7 u
= 7 x 17
= 119
(b)
Number of girls
= 151 - 119
= 32
Number of more boys than girls
= 119 - 32
= 87
Answer(s): (a) 119; (b) 87