Last week, Neave had a total of 327 black and brown staplers. Two weeks later, he sold
34 of all the black staplers and 27 brown staplers. Now he has the same number of black and brown staplers. How many staplers does he have in the end?
| |
Black |
Brown |
Total |
| Before |
4 u |
1 u + 27 |
5 u + 27 |
| Change |
- 3 u |
- 27 |
|
| After |
1 u |
1 u |
|
Comparing the black
and brown staplers in the end |
1 |
1 |
|
Total number of staplers at first
= 4 u + 1 u + 27
= 5 u + 27
5 u + 27 = 327
5 u = 327 - 27
5 u = 300
1 u = 300 ÷ 5 = 60
Number of staplers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 60
= 120
Answer(s): 120
