3 cousins, Penelope, Lynn and Risa, paid a total of $123 for a souvenir. Penelope paid
14 of what the rest paid. Lynn paid
15 of what the rest paid. How much did Risa pay?
| Penelope |
Risa |
Lynn |
Total |
| 1x6 |
4x6 |
5x6 |
| 5x5 |
1x5 |
6x5 |
| 6 u |
19 u |
5 u |
30 u |
Total cost of the souvenir = 30 u
30 u = 123
1 u = 123 ÷ 30 = 4.10
Amount that Risa paid
= 30 u - 6 u - 5 u
= 19 u
= 19 x 4.10
= $77.90
Answer: $77.90
