3 cousins, Mary, Shannon and Xandra, paid a total of $126 for a souvenir. Mary paid
14 of what the others paid. Shannon paid
15 of what the others paid. How much did Xandra pay?
| Mary |
Xandra |
Shannon |
Total |
| 1x6 |
4x6 |
5x6 |
| 5x5 |
1x5 |
6x5 |
| 6 u |
19 u |
5 u |
30 u |
Total cost of the souvenir = 30 u
30 u = 126
1 u = 126 ÷ 30 = 4.20
Amount that Xandra paid
= 30 u - 6 u - 5 u
= 19 u
= 19 x 4.20
= $79.80
Answer: $79.80
