The total cost of the notebook, the juicer and the water heater is $960. The water heater costs thrice as much as the juicer. The notebook costs twice as much as the total price of the water heater and juicer. How much more does the water heater cost than the notebook?
| Water Heater |
Juicer |
Notebook |
| 3 u |
1 u |
|
| 4 u |
8 u |
| 3 u |
1 u |
8 u |
Cost of the juicer = 1 u
Cost of the water heater = 3 u
Total cost of the juicer and the water heater
= 1 u + 3 u
= 4 u
Cost of the notebook
= 2 x 4 u
= 8 u
Total cost of the water heater, the juicer and notebook
= 8 u + 1 u + 3 u
= 12 u
12 u = 960
1 u = 960 ÷ 12 = 80
Amount that the notebook cost more than the water heater
= 8 u - 3 u
= 5 u
= 5 x 80
= $400
Answer(s): $400
