Raeann spent
37 of her money on 5 foolscaps and 10 folders. The cost of one folder was four times the cost of one foolscap. She bought some more folders with
15 of her remaining money. How many folders did Raeann buy altogether?
5 foolscaps and
10 folders |
Remaining amount |
| 3x5 |
4x5 |
| |
More folders |
Left |
| |
1x4 |
4x4 |
| 15 p |
4 p |
16 p |
Cost of 1 foolscap = 1 u
Cost of 1 folder = 4 u
Cost of 5 foolscaps = 5 x 1 u = 5 u
Cost of 10 folders = 10 x 4 u = 40 u
Total cost of 5 foolscaps and 10 folders
= 5 u + 40 u
= 45 u
15 p = 45 u
1 p = 45 ÷ 15 = 3 u
Amount that Raeann used to buy more folders
= 4 p
= 4 x 3 u
= 12 u
Number of more folders that Raeann bought
= 12 u ÷ 4 u
= 3
Total number of folders that Raeann bought
= 10 + 3
= 13
Answer(s): 13
