Fiona spent
34 of her money on 15 markers and 6 staplers. The cost of each stapler is 2 times the cost of each marker. She bought some more markers with
23 of her remaining money. How many markers did Fiona buy altogether?
| 15 markers + 6 staplers |
Remaining
amount |
Total
amount |
| 3 p = 27 u |
1 p = 9 u |
4 p |
15
markers |
6
staplers |
More markers |
Left |
|
| |
|
2 |
1 |
|
| 15 u |
12 u |
6 u |
|
|
Cost of 1 marker = 1 u
Cost of 1 stapler = 2 u
Cost of 15 markers = 15 x 1 u = 15 u
Cost of 6 staplers = 6 x 2 u = 12 u
Cost of 15 markers + 6 staplers
= 15 u + 12 u
= 27 u
3 p = 27 u
1 p = 27 u ÷ 3 = 9 u
Amount of remaining money that Fiona spent on buying more markers
=
23 x 9 u
= 6 u
Number of markers that Fiona bought with
23 of her remaining money
= 6 u ÷ 1 u
= 6
Total number of markers that Fiona bought
= 15 + 6
= 21
Answer(s): 21
