3 brothers, Tina, Emily and Gwen, paid a total of $52 for a gift. Tina paid
13 of what the others paid. Emily paid
17 of what the others paid. How much did Gwen pay?
| Tina |
Gwen |
Emily |
Total |
| 1x2 |
3x2 |
4x2 |
| 7x1 |
1x1 |
8x1 |
| 2 u |
5 u |
1 u |
8 u |
Total cost of the gift = 8 u
8 u = 52
1 u = 52 ÷ 8 = 6.50
Amount that Gwen paid
= 8 u - 2 u - 1 u
= 5 u
= 5 x 6.50
= $32.50
Answer: $32.50
