George had
49 as many cards as Lucy. After George gave away 44 cards, he had 64 less cards than Lucy. How many cards did Lucy have?
|
George |
Lucy |
Before |
4 u |
9 u |
Change |
- 44 |
|
After |
4 u - 44 |
9 u |
Lucy had 64 more cards than George in the end. So, if George had another 64 cards, he would have the same number of cards as Lucy.
9 u = 4 u - 44 + 64
9 u - 4 u = 64 - 44
5 u = 20
1 u = 20 ÷ 5 = 4
Number of cards that Lucy had at first
= 9 u
= 9 x 4
= 36
Answer: 36