Last week, Gabriel had a total of 199 pink and gold markers. Two weeks later, he sold
23 of all the pink markers and bought another 9 gold markers. Now he has the same number of pink and gold markers. How many markers does he have in the end?
| |
Pink |
Gold |
Total |
| Before |
3 u |
1 u - 9 |
4 u - 9 |
| Change |
- 2 u |
+ 9 |
|
| After |
1 u |
1 u |
|
Comparing the pink
and gold markers in the end |
1 |
1 |
|
Total number of markers at first
= 3 u + 1 u - 9
= 4 u - 9
4 u - 9 = 199
4 u = 199 + 9
4 u = 208
1 u = 208 ÷ 4 = 52
Number of markers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 52
= 104
Answer(s): 104
