Last week, Asher had a total of 257 blue and gold files. Two weeks later, he sold
45 of all the blue files and 11 gold files. Now he has the same number of blue and gold files. How many files does he have in the end?
| |
Blue |
Gold |
Total |
| Before |
5 u |
1 u + 11 |
6 u + 11 |
| Change |
- 4 u |
- 11 |
|
| After |
1 u |
1 u |
|
Comparing the blue
and gold files in the end |
1 |
1 |
|
Total number of files at first
= 5 u + 1 u + 11
= 6 u + 11
6 u + 11 = 257
6 u = 257 - 11
6 u = 246
1 u = 246 ÷ 6 = 41
Number of files that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 41
= 82
Answer(s): 82
