3 sisters, Raeann, Xandra and Tina, paid a total of $140 for a present. Raeann paid
13 of what the rest paid. Xandra paid
17 of what the rest paid. How much did Tina pay?
Raeann |
Tina |
Xandra |
Total |
1x2 |
3x2 |
4x2 |
7x1 |
1x1 |
8x1 |
2 u |
5 u |
1 u |
8 u |
Total cost of the present = 8 u
8 u = 140
1 u = 140 ÷ 8 = 17.50
Amount that Tina paid
= 8 u - 2 u - 1 u
= 5 u
= 5 x 17.50
= $87.50
Answer: $87.50