310 of the people in a stadium are boys.
27 of the remainder are girls and the rest are adults. There are 330 more adults than girls. How many people are there in the stadium altogether?
| Boys |
Girls |
Adults |
Total |
| 3 |
7 |
10 |
| |
2 |
5 |
|
| 3 u |
2 u |
5 u |
10 |
Fraction of the people that are girls and adults
= 1 -
310 =
710 Fraction of the remaining people that are adults
= 1 -
27 =
57 Total number of people = 10 u
Number of boys = 3 u
Number of girls = 2 u
Number of adults = 5 u
Number of more adults than girls
= 5 u - 2 u
= 3 u
3 u = 330
1 u = 330 ÷ 3 = 110
Total number of people
= 10 u
= 10 x 110
= 1100
Answer(s): 1100
