3 sisters, Winnie, Mary and Shannon, paid a total of $78 for a souvenir. Winnie paid
13 of what the rest paid. Mary paid
15 of what the rest paid. How much did Shannon pay?
| Winnie |
Shannon |
Mary |
Total |
| 1x3 |
3x3 |
4x3 |
| 5x2 |
1x2 |
6x2 |
| 3 u |
7 u |
2 u |
12 u |
Total cost of the souvenir = 12 u
12 u = 78
1 u = 78 ÷ 12 = 6.50
Amount that Shannon paid
= 12 u - 3 u - 2 u
= 7 u
= 7 x 6.50
= $45.50
Answer: $45.50
