Fanny spent
27 of her money on 9 post-it pads and 5 markers. The cost of one marker was thrice the cost of one post-it pad. She bought some more markers with
14 of her remaining money. How many markers did Fanny buy altogether?
9 post-it pads and
5 markers |
Remaining amount |
| 2x4 |
5x4 |
| |
More markers |
Left |
| |
1x5 |
3x5 |
| 8 p |
5 p |
15 p |
Cost of 1 post-it pad = 1 u
Cost of 1 marker = 3 u
Cost of 9 post-it pads = 9 x 1 u = 9 u
Cost of 5 markers = 5 x 3 u = 15 u
Total cost of 9 post-it pads and 5 markers
= 9 u + 15 u
= 24 u
8 p = 24 u
1 p = 24 ÷ 8 = 3 u
Amount that Fanny used to buy more markers
= 5 p
= 5 x 3 u
= 15 u
Number of more markers that Fanny bought
= 15 u ÷ 3 u
= 5
Total number of markers that Fanny bought
= 5 + 5
= 10
Answer(s): 10
