Last week, Paul had a total of 228 red and silver staplers. Two weeks later, he sold
56 of all the red staplers and bought another 24 silver staplers. Now he has the same number of red and silver staplers. How many staplers does he have in the end?
|
Red |
Silver |
Total |
Before |
6 u |
1 u - 24 |
7 u - 24 |
Change |
- 5 u |
+ 24 |
|
After |
1 u |
1 u |
|
Comparing the red and silver staplers in the end |
1 |
1 |
|
Total number of staplers at first
= 6 u + 1 u - 24
= 7 u - 24
7 u - 24 = 228
7 u = 228 + 24
7 u = 252
1 u = 252 ÷ 7 = 36
Number of staplers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 36
= 72
Answer(s): 72