The total cost of the portable air-conditioner, the food processor and the blender is $720. The blender costs twice as much as the food processor. The portable air-conditioner costs thrice as much as the total price of the blender and food processor. How much less does the blender cost than the portable air-conditioner?
| Blender |
Food Processor |
Portable Air-conditioner |
| 2 u |
1 u |
|
| 3 u |
9 u |
| 2 u |
1 u |
9 u |
Cost of the food processor = 1 u
Cost of the blender = 2 u
Total cost of the food processor and the blender
= 1 u + 2 u
= 3 u
Cost of the portable air-conditioner
= 3 x 3 u
= 9 u
Total cost of the blender, the food processor and portable air-conditioner
= 9 u + 1 u + 2 u
= 12 u
12 u = 720
1 u = 720 ÷ 12 = 60
Amount that the blender cost less than the portable air-conditioner
= 9 u - 2 u
= 7 u
= 7 x 60
= $420
Answer(s): $420
