At the laser tag park, there were 40% as many girls as boys and 40% more adults than girls. Given that there were 24 less girls than adults at the laser tag park, how many children were there altogether?
| Girls |
Boys |
Adults |
| 2x5 |
5x5 |
|
| 5x2 |
|
7x2 |
| 10 u |
25 u |
14 u |
40% =
40100 =
25Girls : Boys = 2 : 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 2 and 5 is 10.
Number of less girls than adults
= 14 u - 10 u
= 4 u
4 u = 24
1 u = 24 ÷ 4 = 6
Number of children
= 10 u + 25 u
= 35 u
= 35 x 6
= 210
Answer(s): 210
