Warren and Julie shared some cards equally. After Julie bought 48 cards and Warren gave 170 cards away, they had 430 cards left. How many cards did each of them have at first?
| |
Warren |
Julie |
Total |
| Before |
1 u |
1 u |
|
| Change |
+ 48 |
- 170 |
|
| After |
1 u + 48 |
1 u - 170 |
430 |
Warren and Julie had the same number of cards at first.
Total number of cards in the end
= 1 u + 48 + 1 u - 170
= 1 u + 1 u + 48 - 170
= 2 u - 122
2 u - 122 = 430
2 u = 430 + 122
2 u = 552
1 u = 552 ÷ 2 = 276
Number of cards that each of them had at first
= 1 u
= 276
Answer(s): 276
