3 sisters, Emily, Tiffany and Risa, paid a total of $104 for a gift. Emily paid
14 of what the rest paid. Tiffany paid
17 of what the rest paid. How much did Risa pay?
Emily |
Risa |
Tiffany |
Total |
1x8 |
4x8 |
5x8 |
7x5 |
1x5 |
8x5 |
8 u |
27 u |
5 u |
40 u |
Total cost of the gift = 40 u
40 u = 104
1 u = 104 ÷ 40 = 2.60
Amount that Risa paid
= 40 u - 8 u - 5 u
= 27 u
= 27 x 2.60
= $70.20
Answer: $70.20