Last week, Liam had a total of 116 grey and red staplers. Two weeks later, he sold
34 of all the grey staplers and 26 red staplers. Now he has the same number of grey and red staplers. How many staplers does he have in the end?
| |
Grey |
Red |
Total |
| Before |
4 u |
1 u + 26 |
5 u + 26 |
| Change |
- 3 u |
- 26 |
|
| After |
1 u |
1 u |
|
Comparing the grey
and red staplers in the end |
1 |
1 |
|
Total number of staplers at first
= 4 u + 1 u + 26
= 5 u + 26
5 u + 26 = 116
5 u = 116 - 26
5 u = 90
1 u = 90 ÷ 5 = 18
Number of staplers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 18
= 36
Answer(s): 36
