3 sisters, Lynn, Mary and Xandra, paid a total of $129 for a souvenir. Lynn paid
12 of what the others paid. Mary paid
15 of what the others paid. How much did Xandra pay?
| Lynn |
Xandra |
Mary |
Total |
| 1x2 |
2x2 |
3x2 |
| 5x1 |
1x1 |
6x1 |
| 2 u |
3 u |
1 u |
6 u |
Total cost of the souvenir = 6 u
6 u = 129
1 u = 129 ÷ 6 = 21.50
Amount that Xandra paid
= 6 u - 2 u - 1 u
= 3 u
= 3 x 21.50
= $64.50
Answer: $64.50
