18 of the people in a park are girls.
17 of the remainder are boys and the rest are adults. There are 1100 more adults than boys. How many people are there in the park altogether?
| Girls |
Boys |
Adults |
Total |
| 1 |
7 |
8 |
| |
1 |
6 |
|
| 1 u |
1 u |
6 u |
8 |
Fraction of the people that are boys and adults
= 1 -
18 =
78 Fraction of the remaining people that are adults
= 1 -
17 =
67 Total number of people = 8 u
Number of girls = 1 u
Number of boys = 1 u
Number of adults = 6 u
Number of more adults than boys
= 6 u - 1 u
= 5 u
5 u = 1100
1 u = 1100 ÷ 5 = 220
Total number of people
= 8 u
= 8 x 220
= 1760
Answer(s): 1760
