Cindy spent
27 of her money on 6 notebooks and 5 highlighters. The cost of one highlighter was twice the cost of one notebook. She bought some more highlighters with
14 of her remaining money. How many highlighters did Cindy buy altogether?
6 notebooks and
5 highlighters |
Remaining amount |
| 2x4 |
5x4 |
| |
More highlighters |
Left |
| |
1x5 |
3x5 |
| 8 p |
5 p |
15 p |
Cost of 1 notebook = 1 u
Cost of 1 highlighter = 2 u
Cost of 6 notebooks = 6 x 1 u = 6 u
Cost of 5 highlighters = 5 x 2 u = 10 u
Total cost of 6 notebooks and 5 highlighters
= 6 u + 10 u
= 16 u
8 p = 16 u
1 p = 16 ÷ 8 = 2 u
Amount that Cindy used to buy more highlighters
= 5 p
= 5 x 2 u
= 10 u
Number of more highlighters that Cindy bought
= 10 u ÷ 2 u
= 5
Total number of highlighters that Cindy bought
= 5 + 5
= 10
Answer(s): 10
