Last week, Archie had a total of 175 green and yellow markers. Two weeks later, he sold
45 of all the green markers and 13 yellow markers. Now he has the same number of green and yellow markers. How many markers does he have in the end?
| |
Green |
Yellow |
Total |
| Before |
5 u |
1 u + 13 |
6 u + 13 |
| Change |
- 4 u |
- 13 |
|
| After |
1 u |
1 u |
|
Comparing the green
and yellow markers in the end |
1 |
1 |
|
Total number of markers at first
= 5 u + 1 u + 13
= 6 u + 13
6 u + 13 = 175
6 u = 175 - 13
6 u = 162
1 u = 162 ÷ 6 = 27
Number of markers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 27
= 54
Answer(s): 54
