A file cost $2.50. A pen cost $14.50 more than the file. Abi spent $88 on such files and pens. She bought twice as many files as pens.
- How many pens did Abi buy?
- How much money did Abi spend on the files?
|
Files |
Pens |
Total |
Number |
2 u |
1 u |
|
Value |
2.50 |
17 |
|
Total value |
5 u |
17 u |
88 |
(a)
Cost of a pen
= 14.50 + 2.50
= $17
Total cost of files and pens
= 5 u + 17 u
= 22 u
22 u = 88
1 u = 88 ÷ 22 = 4
Number of pens that Abi bought
= 1 u
= 4
(b)
Amount that Abi spent on files
= 5 u
= 5 x 4
= $20
Answer(s): (a) 4; (b) $20