Jane spent
27 of her money on 6 notebooks and 3 folders. The cost of one folder was twice the cost of one notebook. She bought some more folders with
13 of her remaining money. How many folders did Jane buy altogether?
6 notebooks and
3 folders |
Remaining amount |
| 2x3 |
5x3 |
| |
More folders |
Left |
| |
1x5 |
2x5 |
| 6 p |
5 p |
10 p |
Cost of 1 notebook = 1 u
Cost of 1 folder = 2 u
Cost of 6 notebooks = 6 x 1 u = 6 u
Cost of 3 folders = 3 x 2 u = 6 u
Total cost of 6 notebooks and 3 folders
= 6 u + 6 u
= 12 u
6 p = 12 u
1 p = 12 ÷ 6 = 2 u
Amount that Jane used to buy more folders
= 5 p
= 5 x 2 u
= 10 u
Number of more folders that Jane bought
= 10 u ÷ 2 u
= 5
Total number of folders that Jane bought
= 3 + 5
= 8
Answer(s): 8
