Lee and Winnie shared some cards equally. After Winnie bought 93 cards and Lee gave 125 cards away, they had 286 cards left. How many cards did each of them have at first?
| |
Lee |
Winnie |
Total |
| Before |
1 u |
1 u |
|
| Change |
+ 93 |
- 125 |
|
| After |
1 u + 93 |
1 u - 125 |
286 |
Lee and Winnie had the same number of cards at first.
Total number of cards in the end
= 1 u + 93 + 1 u - 125
= 1 u + 1 u + 93 - 125
= 2 u - 32
2 u - 32 = 286
2 u = 286 + 32
2 u = 318
1 u = 318 ÷ 2 = 159
Number of cards that each of them had at first
= 1 u
= 159
Answer(s): 159
