Last week, Brandon had a total of 242 gold and yellow markers. Two weeks later, he sold
45 of all the gold markers and 20 yellow markers. Now he has the same number of gold and yellow markers. How many markers does he have in the end?
| |
Gold |
Yellow |
Total |
| Before |
5 u |
1 u + 20 |
6 u + 20 |
| Change |
- 4 u |
- 20 |
|
| After |
1 u |
1 u |
|
Comparing the gold
and yellow markers in the end |
1 |
1 |
|
Total number of markers at first
= 5 u + 1 u + 20
= 6 u + 20
6 u + 20 = 242
6 u = 242 - 20
6 u = 222
1 u = 222 ÷ 6 = 37
Number of markers that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 37
= 74
Answer(s): 74
