16 of the people are adults.
710 of the remainder are girls.
There are 20 more girls than adults.
How many people are there?
Adults |
Children |
1 x 2 |
5 x 2 |
|
Girls |
Boys |
|
7 |
3 |
2 u |
7 u |
3 u |
The number of children is the combined repeated identity.
Make the number of children the same by using LCM of 5 and 10.
LCM of 5 and 10 = 10
Number of girls = 7 u
Number of adults = 2 u
Number of more girls than adults
= 7 u - 2 u
= 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
Total number of people
= 2 u + 7 u + 3 u
= 12 u
= 12 x 4
= 48
Answer(s): 48