Gabriel and Carl had the same number of cards at first. After Gabriel had bought another 36 cards and Carl had lost 10 of his cards, Gabriel had thrice as many cards as Carl. How many cards did each of them have at first?
| |
Carl |
Gabriel |
| Before |
1 u + 10 |
3 u - 36 |
| Change |
- 10 |
+ 36 |
| After |
1 u |
3 u |
Gabriel and Carl had the same number of cards at first.
3 u - 36 = 1 u + 10
3 u - 1 u = 10 + 36
2 u = 46
1 u = 46 ÷ 2 = 23
Number of cards that each of them had at first
= 1 u + 10
= 23 + 10
= 33
Answer(s): 33
