19 of the people are adults.
1516 of the remainder are girls.
There are 13 more girls than adults.
How many people are there?
Adults |
Children |
1 x 2 |
8 x 2 |
|
Girls |
Boys |
|
15 |
1 |
2 u |
15 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 16.
LCM of 8 and 16 = 16
Number of girls = 15 u
Number of adults = 2 u
Number of more girls than adults
= 15 u - 2 u
= 13 u
13 u = 13
1 u = 13 ÷ 13 = 1
Total number of people
= 2 u + 15 u + 1 u
= 18 u
= 18 x 1
= 18
Answer(s): 18