A marker cost $1.50. A pen cost $14.50 more than the marker. Zoe spent $154 on such markers and pens. She bought four times as many markers as pens.
- How many pens did Zoe buy?
- How much money did Zoe spend on the markers?
|
Markers |
Pens |
Total |
Number |
4 u |
1 u |
|
Value |
1.50 |
16 |
|
Total value |
6 u |
16 u |
154 |
(a)
Cost of a pen
= 14.50 + 1.50
= $16
Total cost of markers and pens
= 6 u + 16 u
= 22 u
22 u = 154
1 u = 154 ÷ 22 = 7
Number of pens that Zoe bought
= 1 u
= 7
(b)
Amount that Zoe spent on markers
= 6 u
= 6 x 7
= $42
Answer(s): (a) 7; (b) $42