Last week, Japheth had a total of 242 pink and blue markers. Two weeks later, he sold
23 of all the pink markers and 10 blue markers. Now he has the same number of pink and blue markers. How many markers does he have in the end?
| |
Pink |
Blue |
Total |
| Before |
3 u |
1 u + 10 |
4 u + 10 |
| Change |
- 2 u |
- 10 |
|
| After |
1 u |
1 u |
|
Comparing the pink
and blue markers in the end |
1 |
1 |
|
Total number of markers at first
= 3 u + 1 u + 10
= 4 u + 10
4 u + 10 = 242
4 u = 242 - 10
4 u = 232
1 u = 232 ÷ 4 = 58
Number of markers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 58
= 116
Answer(s): 116
