Last week, Julian had a total of 116 purple and pink files. Two weeks later, he sold
45 of all the purple files and 8 pink files. Now he has the same number of purple and pink files. How many files does he have in the end?
|
Purple |
Pink |
Total |
Before |
5 u |
1 u + 8 |
6 u + 8 |
Change |
- 4 u |
- 8 |
|
After |
1 u |
1 u |
|
Comparing the purple and pink files in the end |
1 |
1 |
|
Total number of files at first
= 5 u + 1 u + 8
= 6 u + 8
6 u + 8 = 116
6 u = 116 - 8
6 u = 108
1 u = 108 ÷ 6 = 18
Number of files that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 18
= 36
Answer(s): 36