Gabriel and Archie had a total of 171 cards at first. After Gabriel bought 28 more cards and Archie gave away 15 cards, Gabriel now has the same number of cards as Archie. How many cards did Gabriel have at first?
| |
Gabriel |
Archie |
Total |
| Before |
1 u - 28 |
1 u + 15 |
171 |
| Change |
+ 28 |
- 15 |
|
| After |
1 u |
1 u |
184 |
Total number of cards in the end
= 171 + 28 - 15
= 184
2 u = 184
1 u = 184 ÷ 2 = 92
Number of cards that Gabriel had in the end
= 1 u
= 92
Number of cards that Gabriel had at first
= 92 - 28
= 64
Answer(s): 64
