Elyse spent
35 of her money on 2 folders and 5 files. The cost of one file was twice the cost of one folder. She bought some more files with
14 of her remaining money. How many files did Elyse buy altogether?
2 folders and
5 files |
Remaining amount |
| 3x2 |
2x2 |
| |
More files |
Left |
| |
1x1 |
3x1 |
| 6 p |
1 p |
3 p |
Cost of 1 folder = 1 u
Cost of 1 file = 2 u
Cost of 2 folders = 2 x 1 u = 2 u
Cost of 5 files = 5 x 2 u = 10 u
Total cost of 2 folders and 5 files
= 2 u + 10 u
= 12 u
6 p = 12 u
1 p = 12 ÷ 6 = 2 u
Amount that Elyse used to buy more files
= 1 p
= 1 x 2 u
= 2 u
Number of more files that Elyse bought
= 2 u ÷ 2 u
= 1
Total number of files that Elyse bought
= 5 + 1
= 6
Answer(s): 6
