The total cost of the portable air-conditioner, the sandwich maker and the toaster is $600. The toaster costs twice as much as the sandwich maker. The portable air-conditioner costs thrice as much as the total price of the toaster and sandwich maker. How much less does the toaster cost than the portable air-conditioner?
| Toaster |
Sandwich Maker |
Portable Air-conditioner |
| 2 u |
1 u |
|
| 3 u |
9 u |
| 2 u |
1 u |
9 u |
Cost of the sandwich maker = 1 u
Cost of the toaster = 2 u
Total cost of the sandwich maker and the toaster
= 1 u + 2 u
= 3 u
Cost of the portable air-conditioner
= 3 x 3 u
= 9 u
Total cost of the toaster, the sandwich maker and portable air-conditioner
= 9 u + 1 u + 2 u
= 12 u
12 u = 600
1 u = 600 ÷ 12 = 50
Amount that the toaster cost less than the portable air-conditioner
= 9 u - 2 u
= 7 u
= 7 x 50
= $350
Answer(s): $350
