Last week, Fred had a total of 266 gold and green staplers. Two weeks later, he sold
45 of all the gold staplers and 20 green staplers. Now he has the same number of gold and green staplers. How many staplers does he have in the end?
| |
Gold |
Green |
Total |
| Before |
5 u |
1 u + 20 |
6 u + 20 |
| Change |
- 4 u |
- 20 |
|
| After |
1 u |
1 u |
|
Comparing the gold
and green staplers in the end |
1 |
1 |
|
Total number of staplers at first
= 5 u + 1 u + 20
= 6 u + 20
6 u + 20 = 266
6 u = 266 - 20
6 u = 246
1 u = 246 ÷ 6 = 41
Number of staplers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 41
= 82
Answer(s): 82
