At the night market, there were 60% as many girls as boys and 10% more adults than girls. Given that there were 9 less girls than adults at the night market, how many children were there altogether?
| Girls |
Boys |
Adults |
| 3x10 |
5x10 |
|
| 10x3 |
|
11x3 |
| 30 u |
50 u |
33 u |
60% =
60100 =
35Girls : Boys = 3 : 5
100% + 10% = 110%
110% =
110100 =
1110 Girls : Adults = 10 : 11
The number of girls is repeated. Make the number of girls the same. LCM of 3 and 10 is 30.
Number of less girls than adults
= 33 u - 30 u
= 3 u
3 u = 9
1 u = 9 ÷ 3 = 3
Number of children
= 30 u + 50 u
= 80 u
= 80 x 3
= 240
Answer(s): 240
