2 computers and 4 refrigerators cost a total of $2208. Each computer costs four times as much as each refrigerator.
- What is the cost of each computer?
- What is the total cost of 1 computer and 1 refrigerator?
(a)
Cost of 1 refrigerator = 1 u
Cost of 1 computer = 4 x 1 u = 4 u
Cost of 4 refrigerators = 4 x 1 u = 4 u
Cost of 2 computers = 2 x 4 u = 8 u
Total cost of 2 computers and 4 refrigerators
= 8 u + 4 u
= 12 u
12 u = 2208
1 u = 2208 ÷ 12 = 184
Cost of each computer
= 4 u
= 4 x 184
= $736
(b)
Total cost of 1 computer and 1 refrigerator
= 4 u + 1 u
= 5 u
= 5 x 184
= $920
Answer(s): (a) $736; (b) $920
