Oscar and Charlie had 54 markers. After Oscar gave 17 markers to Charlie. Charlie, in return, gave half of his markers to Oscar. In the end, Oscar had twice as many markers as Charlie. How many markers did Oscar have at first?
| |
Oscar |
Charlie |
Total |
| Before |
1 u + 17 |
2 u - 17 |
54 |
| Change 1 |
- 17 |
+ 17 |
|
| After 1 |
1 u |
2 u |
|
| Change 2 |
+ 1 u |
- 1 u |
|
| After 2 |
2 u |
1 u |
54 |
Total number of markers that Oscar and Charlie had at first and in the end remains unchanged.
Total number of markers
= 2 u + 1 u
= 3 u
1 u = 54 ÷ 3 = 18
Number of markers that Oscar had at first
= 1 u + 17
= 18 + 17
= 35
Answer(s): 35
