19 of the people in a bird park are boys.
38 of the remainder are girls and the rest are adults. There are 380 more adults than girls. How many people are there in the bird park altogether?
| Boys |
Girls |
Adults |
Total |
| 1 |
8 |
9 |
| |
3 |
5 |
|
| 1 u |
3 u |
5 u |
9 |
Fraction of the people that are girls and adults
= 1 -
19 =
89 Fraction of the remaining people that are adults
= 1 -
38 =
58 Total number of people = 9 u
Number of boys = 1 u
Number of girls = 3 u
Number of adults = 5 u
Number of more adults than girls
= 5 u - 3 u
= 2 u
2 u = 380
1 u = 380 ÷ 2 = 190
Total number of people
= 9 u
= 9 x 190
= 1710
Answer(s): 1710
