A pen cost $1.50. A notebook cost $14.50 more than the pen. Barbara spent $44 on such pens and notebooks. She bought four times as many pens as notebooks.
- How many notebooks did Barbara buy?
- How much money did Barbara spend on the pens?
|
Pens |
Notebooks |
Total |
Number |
4 u |
1 u |
|
Value |
1.50 |
16 |
|
Total value |
6 u |
16 u |
44 |
(a)
Cost of a notebook
= 14.50 + 1.50
= $16
Total cost of pens and notebooks
= 6 u + 16 u
= 22 u
22 u = 44
1 u = 44 ÷ 22 = 2
Number of notebooks that Barbara bought
= 1 u
= 2
(b)
Amount that Barbara spent on pens
= 6 u
= 6 x 2
= $12
Answer(s): (a) 2; (b) $12