At the laser tag park, there were 40% as many girls as boys and 30% more adults than girls. Given that there were 36 more adults than girls at the laser tag park, how many children were there altogether?
Girls |
Boys |
Adults |
2x5 |
5x5 |
|
10x1 |
|
13x1 |
10 u |
25 u |
13 u |
40% =
40100 =
25Girls : Boys = 2 : 5
100% + 30% = 130%
130% =
130100 =
1310 Girls : Adults = 10 : 13
The number of girls is repeated. Make the number of girls the same. LCM of 2 and 10 is 10.
Number of more adults than girls
= 13 u - 10 u
= 3 u
3 u = 36
1 u = 36 ÷ 3 = 12
Number of children
= 10 u + 25 u
= 35 u
= 35 x 12
= 420
Answer(s): 420