Jade spent
23 of her money on 12 notebooks and 8 pencils. The cost of each pencil is 3 times the cost of each notebook. She bought some more notebooks with
56 of her remaining money. How many notebooks did Jade buy altogether?
| 12 notebooks + 8 pencils |
Remaining
amount |
Total
amount |
| 2 p = 36 u |
1 p = 18 u |
3 p |
12
notebooks |
8
pencils |
More notebooks |
Left |
|
| |
|
5 |
1 |
|
| 12 u |
24 u |
15 u |
|
|
Cost of 1 notebook = 1 u
Cost of 1 pencil = 3 u
Cost of 12 notebooks = 12 x 1 u = 12 u
Cost of 8 pencils = 8 x 3 u = 24 u
Cost of 12 notebooks + 8 pencils
= 12 u + 24 u
= 36 u
2 p = 36 u
1 p = 36 u ÷ 2 = 18 u
Amount of remaining money that Jade spent on buying more notebooks
=
56 x 18 u
= 15 u
Number of notebooks that Jade bought with
56 of her remaining money
= 15 u ÷ 1 u
= 15
Total number of notebooks that Jade bought
= 12 + 15
= 27
Answer(s): 27
