At the laser tag park, there were 60% as many girls as boys and 20% more adults than girls. Given that there were 27 more adults than girls at the laser tag park, how many children were there altogether?
Girls |
Boys |
Adults |
3x5 |
5x5 |
|
5x3 |
|
6x3 |
15 u |
25 u |
18 u |
60% =
60100 =
35Girls : Boys = 3 : 5
100% + 20% = 120%
120% =
120100 =
65 Girls : Adults = 5 : 6
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
= 18 u - 15 u
= 3 u
3 u = 27
1 u = 27 ÷ 3 = 9
Number of children
= 15 u + 25 u
= 40 u
= 40 x 9
= 360
Answer(s): 360