Rachel spent
35 of her money on 3 glues and 8 folders. The cost of one folder was thrice the cost of one glue. She bought some more folders with
13 of her remaining money. How many folders did Rachel buy altogether?
3 glues and
8 folders |
Remaining amount |
| 3x3 |
2x3 |
| |
More folders |
Left |
| |
1x2 |
2x2 |
| 9 p |
2 p |
4 p |
Cost of 1 glue = 1 u
Cost of 1 folder = 3 u
Cost of 3 glues = 3 x 1 u = 3 u
Cost of 8 folders = 8 x 3 u = 24 u
Total cost of 3 glues and 8 folders
= 3 u + 24 u
= 27 u
9 p = 27 u
1 p = 27 ÷ 9 = 3 u
Amount that Rachel used to buy more folders
= 2 p
= 2 x 3 u
= 6 u
Number of more folders that Rachel bought
= 6 u ÷ 3 u
= 2
Total number of folders that Rachel bought
= 8 + 2
= 10
Answer(s): 10
