Last week, Jenson had a total of 152 yellow and silver files. Two weeks later, he sold
45 of all the yellow files and 14 silver files. Now he has the same number of yellow and silver files. How many files does he have in the end?
| |
Yellow |
Silver |
Total |
| Before |
5 u |
1 u + 14 |
6 u + 14 |
| Change |
- 4 u |
- 14 |
|
| After |
1 u |
1 u |
|
Comparing the yellow
and silver files in the end |
1 |
1 |
|
Total number of files at first
= 5 u + 1 u + 14
= 6 u + 14
6 u + 14 = 152
6 u = 152 - 14
6 u = 138
1 u = 138 ÷ 6 = 23
Number of files that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 23
= 46
Answer(s): 46
