Jade spent
35 of her money on 6 post-it pads and 3 files. The cost of one file was twice the cost of one post-it pad. She bought some more files with
14 of her remaining money. How many files did Jade buy altogether?
6 post-it pads and
3 files |
Remaining amount |
| 3x2 |
2x2 |
| |
More files |
Left |
| |
1x1 |
3x1 |
| 6 p |
1 p |
3 p |
Cost of 1 post-it pad = 1 u
Cost of 1 file = 2 u
Cost of 6 post-it pads = 6 x 1 u = 6 u
Cost of 3 files = 3 x 2 u = 6 u
Total cost of 6 post-it pads and 3 files
= 6 u + 6 u
= 12 u
6 p = 12 u
1 p = 12 ÷ 6 = 2 u
Amount that Jade used to buy more files
= 1 p
= 1 x 2 u
= 2 u
Number of more files that Jade bought
= 2 u ÷ 2 u
= 1
Total number of files that Jade bought
= 3 + 1
= 4
Answer(s): 4
