29 of the people are adults.
1114 of the remainder are girls.
There are 21 more girls than adults.
How many people are there?
Adults |
Children |
2 x 2 |
7 x 2 |
|
Girls |
Boys |
|
11 |
3 |
4 u |
11 u |
3 u |
The number of children is the combined repeated identity.
Make the number of children the same by using LCM of 7 and 14.
LCM of 7 and 14 = 14
Number of girls = 11 u
Number of adults = 4 u
Number of more girls than adults
= 11 u - 4 u
= 7 u
7 u = 21
1 u = 21 ÷ 7 = 3
Total number of people
= 4 u + 11 u + 3 u
= 18 u
= 18 x 3
= 54
Answer(s): 54