Lucy spent
27 of her money on 8 folders and 10 highlighters. The cost of one highlighter was four times the cost of one folder. She bought some more highlighters with
16 of her remaining money. How many highlighters did Lucy buy altogether?
8 folders and
10 highlighters |
Remaining amount |
| 2x6 |
5x6 |
| |
More highlighters |
Left |
| |
1x5 |
5x5 |
| 12 p |
5 p |
25 p |
Cost of 1 folder = 1 u
Cost of 1 highlighter = 4 u
Cost of 8 folders = 8 x 1 u = 8 u
Cost of 10 highlighters = 10 x 4 u = 40 u
Total cost of 8 folders and 10 highlighters
= 8 u + 40 u
= 48 u
12 p = 48 u
1 p = 48 ÷ 12 = 4 u
Amount that Lucy used to buy more highlighters
= 5 p
= 5 x 4 u
= 20 u
Number of more highlighters that Lucy bought
= 20 u ÷ 4 u
= 5
Total number of highlighters that Lucy bought
= 10 + 5
= 15
Answer(s): 15
