Last week, Seth had a total of 255 silver and yellow markers. Two weeks later, he sold
23 of all the silver markers and 27 yellow markers. Now he has the same number of silver and yellow markers. How many markers does he have in the end?
| |
Silver |
Yellow |
Total |
| Before |
3 u |
1 u + 27 |
4 u + 27 |
| Change |
- 2 u |
- 27 |
|
| After |
1 u |
1 u |
|
Comparing the silver
and yellow markers in the end |
1 |
1 |
|
Total number of markers at first
= 3 u + 1 u + 27
= 4 u + 27
4 u + 27 = 255
4 u = 255 - 27
4 u = 228
1 u = 228 ÷ 4 = 57
Number of markers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 57
= 114
Answer(s): 114
