Xandra and Fiona had the same number of marbles. After Xandra had given away 64 marbles, Fiona had 3 times as many marbles as Xandra. How many marbles did each of them have at first?
| |
Xandra |
Fiona |
| Before |
1 u + 64 |
3 u |
| Change |
- 64 |
|
| After |
1 u |
3 u |
Number of marbles that Fiona had remains unchanged.
Number of marbles that Xandra and Fiona had at first is equal.
3 u = 1 u + 64
3 u - 1 u = 64
2 u = 64
1 u = 64 ÷ 2= 32
Number of marbles that each of them had at first
= 1 u + 64
= 32 + 64
= 96
Answer(s): 96
