Last week, Tim had a total of 292 purple and red pens. Two weeks later, he sold
56 of all the purple pens and 26 red pens. Now he has the same number of purple and red pens. How many pens does he have in the end?
|
Purple |
Red |
Total |
Before |
6 u |
1 u + 26 |
7 u + 26 |
Change |
- 5 u |
- 26 |
|
After |
1 u |
1 u |
|
Comparing the purple and red pens in the end |
1 |
1 |
|
Total number of pens at first
= 6 u + 1 u + 26
= 7 u + 26
7 u + 26 = 292
7 u = 292 - 26
7 u = 266
1 u = 266 ÷ 7 = 38
Number of pens that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 38
= 76
Answer(s): 76