Wendy spent
45 of her money on 14 markers and 5 pencils. The cost of each pencil is 2 times the cost of each marker. She bought some more markers with
23 of her remaining money. How many markers did Wendy buy altogether?
| 14 markers + 5 pencils |
Remaining
amount |
Total
amount |
| 4 p = 24 u |
1 p = 6 u |
5 p |
14
markers |
5
pencils |
More markers |
Left |
|
| |
|
2 |
1 |
|
| 14 u |
10 u |
4 u |
|
|
Cost of 1 marker = 1 u
Cost of 1 pencil = 2 u
Cost of 14 markers = 14 x 1 u = 14 u
Cost of 5 pencils = 5 x 2 u = 10 u
Cost of 14 markers + 5 pencils
= 14 u + 10 u
= 24 u
4 p = 24 u
1 p = 24 u ÷ 4 = 6 u
Amount of remaining money that Wendy spent on buying more markers
=
23 x 6 u
= 4 u
Number of markers that Wendy bought with
23 of her remaining money
= 4 u ÷ 1 u
= 4
Total number of markers that Wendy bought
= 14 + 4
= 18
Answer(s): 18
