The total cost of the dishwasher, the hand blender and the toaster is $1200. The toaster costs twice as much as the hand blender. The dishwasher costs thrice as much as the total price of the toaster and hand blender. How much less does the toaster cost than the dishwasher?
| Toaster |
Hand Blender |
Dishwasher |
| 2 u |
1 u |
|
| 3 u |
9 u |
| 2 u |
1 u |
9 u |
Cost of the hand blender = 1 u
Cost of the toaster = 2 u
Total cost of the hand blender and the toaster
= 1 u + 2 u
= 3 u
Cost of the dishwasher
= 3 x 3 u
= 9 u
Total cost of the toaster, the hand blender and dishwasher
= 9 u + 1 u + 2 u
= 12 u
12 u = 1200
1 u = 1200 ÷ 12 = 100
Amount that the toaster cost less than the dishwasher
= 9 u - 2 u
= 7 u
= 7 x 100
= $700
Answer(s): $700
