At the fair, there were 60% as many girls as boys and 40% more adults than girls. Given that there were 48 more adults than girls at the fair, how many children were there altogether?
| Girls |
Boys |
Adults |
| 3x5 |
5x5 |
|
| 5x3 |
|
7x3 |
| 15 u |
25 u |
21 u |
60% =
60100 =
35Girls : Boys = 3 : 5
100% + 40% = 140%
140% =
140100 =
75 Girls : Adults = 5 : 7
The number of girls is repeated. Make the number of girls the same. LCM of 3 and 5 is 15.
Number of more adults than girls
= 21 u - 15 u
= 6 u
6 u = 48
1 u = 48 ÷ 6 = 8
Number of children
= 15 u + 25 u
= 40 u
= 40 x 8
= 320
Answer(s): 320
