111 of the people in a tourist attraction are girls.
310 of the remainder are boys and the rest are adults. There are 480 more adults than boys. How many people are there in the tourist attraction altogether?
| Girls |
Boys |
Adults |
Total |
| 1 |
10 |
11 |
| |
3 |
7 |
|
| 1 u |
3 u |
7 u |
11 |
Fraction of the people that are boys and adults
= 1 -
111 =
1011 Fraction of the remaining people that are adults
= 1 -
310 =
710 Total number of people = 11 u
Number of girls = 1 u
Number of boys = 3 u
Number of adults = 7 u
Number of more adults than boys
= 7 u - 3 u
= 4 u
4 u = 480
1 u = 480 ÷ 4 = 120
Total number of people
= 11 u
= 11 x 120
= 1320
Answer(s): 1320
