Warren and Wesley had 60 markers. After Warren gave 19 markers to Wesley. Wesley, in return, gave half of his markers to Warren. In the end, Warren had twice as many markers as Wesley. How many markers did Warren have at first?
| |
Warren |
Wesley |
Total |
| Before |
1 u + 19 |
2 u - 19 |
60 |
| Change 1 |
- 19 |
+ 19 |
|
| After 1 |
1 u |
2 u |
|
| Change 2 |
+ 1 u |
- 1 u |
|
| After 2 |
2 u |
1 u |
60 |
Total number of markers that Warren and Wesley had at first and in the end remains unchanged.
Total number of markers
= 2 u + 1 u
= 3 u
1 u = 60 ÷ 3 = 20
Number of markers that Warren had at first
= 1 u + 19
= 20 + 19
= 39
Answer(s): 39
