Hilda spent
25 of her money on 10 files and 3 correction tapes. The cost of one correction tape was twice the cost of one file. She bought some more correction tapes with
16 of her remaining money. How many correction tapes did Hilda buy altogether?
10 files and
3 correction tapes |
Remaining amount |
| 2x2 |
3x2 |
| |
More correction tapes |
Left |
| |
1x1 |
5x1 |
| 4 p |
1 p |
5 p |
Cost of 1 file = 1 u
Cost of 1 correction tape = 2 u
Cost of 10 files = 10 x 1 u = 10 u
Cost of 3 correction tapes = 3 x 2 u = 6 u
Total cost of 10 files and 3 correction tapes
= 10 u + 6 u
= 16 u
4 p = 16 u
1 p = 16 ÷ 4 = 4 u
Amount that Hilda used to buy more correction tapes
= 1 p
= 1 x 4 u
= 4 u
Number of more correction tapes that Hilda bought
= 4 u ÷ 2 u
= 2
Total number of correction tapes that Hilda bought
= 3 + 2
= 5
Answer(s): 5
