Kylie spent
35 of her money on 9 folders and 3 correction tapes. The cost of one correction tape was thrice the cost of one folder. She bought some more correction tapes with
14 of her remaining money. How many correction tapes did Kylie buy altogether?
9 folders and 3 correction tapes |
Remaining amount |
3x2 |
2x2 |
|
More correction tapes |
Left |
|
1x1 |
3x1 |
6 p |
1 p |
3 p |
Cost of 1 folder = 1 u
Cost of 1 correction tape = 3 u
Cost of 9 folders = 9 x 1 u = 9 u
Cost of 3 correction tapes = 3 x 3 u = 9 u
Total cost of 9 folders and 3 correction tapes
= 9 u + 9 u
= 18 u
6 p = 18 u
1 p = 18 ÷ 6 = 3 u
Amount that Kylie used to buy more correction tapes
= 1 p
= 1 x 3 u
= 3 u
Number of more correction tapes that Kylie bought
= 3 u ÷ 3 u
= 1
Total number of correction tapes that Kylie bought
= 3 + 1
= 4
Answer(s): 4