There were 2 times as many boys as girls at a function. After 6 girls left, the number of boys was 6 times the number of the remaining girls. How many people attended the function?
|
Boys |
Girls |
Total |
Before |
2x3 = 6 u |
1x3 = 3 u |
9 u |
Change |
|
- 6 |
|
After |
6 u |
1 u |
|
The number of boys at first and in the end remains unchanged. Make the number of boys the same. LCM of 2 and 6 is 6.
Number of girls who left
= 3 u - 1 u
= 2 u
2 u = 6
1 u = 6 ÷ 2 = 3
Number of people who attended the function
= 6 u + 3 u
= 9 u
= 9 x 3
= 27
Answer(s): 27