14 of the people are adults.
57 of the remainder are girls.
There are 24 more girls than adults.
How many people are there?
Adults |
Children |
1 x 7 |
3 x 7 |
|
Girls |
Boys |
|
5 x 3 |
2 x 3 |
7 u |
15 u |
6 u |
The number of children is the combined repeated identity.
Make the number of children the same by using LCM of 3 and 7.
LCM of 3 and 7 = 21
Number of girls = 15 u
Number of adults = 7 u
Number of more girls than adults
= 15 u - 7 u
= 8 u
8 u = 24
1 u = 24 ÷ 8 = 3
Total number of people
= 7 u + 15 u + 6 u
= 28 u
= 28 x 3
= 84
Answer(s): 84