19 of the people are adults.
2324 of the remainder are girls.
There are 20 more girls than adults.
How many people are there?
Adults |
Children |
1 x 3 |
8 x 3 |
|
Girls |
Boys |
|
23 |
1 |
3 u |
23 u |
1 u |
The number of children is the combined repeated identity.
Make the number of children the same by using LCM of 8 and 24.
LCM of 8 and 24 = 24
Number of girls = 23 u
Number of adults = 3 u
Number of more girls than adults
= 23 u - 3 u
= 20 u
20 u = 20
1 u = 20 ÷ 20 = 1
Total number of people
= 3 u + 23 u + 1 u
= 27 u
= 27 x 1
= 27
Answer(s): 27