Penelope spent
38 of her money on 8 files and 10 foolscaps. The cost of one foolscap was four times the cost of one file. She bought some more foolscaps with
14 of her remaining money. How many foolscaps did Penelope buy altogether?
8 files and
10 foolscaps |
Remaining amount |
| 3x4 |
5x4 |
| |
More foolscaps |
Left |
| |
1x5 |
3x5 |
| 12 p |
5 p |
15 p |
Cost of 1 file = 1 u
Cost of 1 foolscap = 4 u
Cost of 8 files = 8 x 1 u = 8 u
Cost of 10 foolscaps = 10 x 4 u = 40 u
Total cost of 8 files and 10 foolscaps
= 8 u + 40 u
= 48 u
12 p = 48 u
1 p = 48 ÷ 12 = 4 u
Amount that Penelope used to buy more foolscaps
= 5 p
= 5 x 4 u
= 20 u
Number of more foolscaps that Penelope bought
= 20 u ÷ 4 u
= 5
Total number of foolscaps that Penelope bought
= 10 + 5
= 15
Answer(s): 15
