A stapler cost $3.50. A pen cost $14.50 more than the stapler. Hazel spent $300 on such staplers and pens. She bought twice as many staplers as pens.
- How many pens did Hazel buy?
- How much money did Hazel spend on the staplers?
|
Staplers |
Pens |
Total |
Number |
2 u |
1 u |
|
Value |
3.50 |
18 |
|
Total value |
7 u |
18 u |
300 |
(a)
Cost of a pen
= 14.50 + 3.50
= $18
Total cost of staplers and pens
= 7 u + 18 u
= 25 u
25 u = 300
1 u = 300 ÷ 25 = 12
Number of pens that Hazel bought
= 1 u
= 12
(b)
Amount that Hazel spent on staplers
= 7 u
= 7 x 12
= $84
Answer(s): (a) 12; (b) $84