25 of the people are adults.
67 of the remainder are boys.
There are 12 more boys than adults.
How many people are there?
Adults |
Children |
2 x 7 |
3 x 7 |
|
Boys |
Girls |
|
6 x 3 |
1 x 3 |
14 u |
18 u |
3 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 boys = 18 u
Number of adults = 14 u
Number of more boys than adults
= 18 u - 14 u
= 4 u
4 u = 12
1 u = 12 ÷ 4 = 3
Total number of people
= 14 u + 18 u + 3 u
= 35 u
= 35 x 3
= 105
Answer(s): 105