13 of the people are children.
57 of the remainder are men.
There are 21 more men than children.
How many people are there?
Children |
Adults |
1 x 7 |
2 x 7 |
|
Men |
Women |
|
5 x 2 |
2 x 2 |
7 u |
10 u |
4 u |
The number of adults is the combined repeated identity.
Make the number of adults the same by using LCM of 2 and 7.
LCM of 2 and 7 = 14
Number of men = 10 u
Number of children = 7 u
Number of more men than children
= 10 u - 7 u
= 3 u
3 u = 21
1 u = 21 ÷ 3 = 7
Total number of people
= 7 u + 10 u + 4 u
= 21 u
= 21 x 7
= 147
Answer(s): 147