Kaylee wants to buy some pens of the same price. If she buys 4 pens, she will have $7.60 left. If she buys 8 pens, she will short of $2.40.
- How much does each pen cost?
- How much does Kaylee have?
(a)
Difference in the number of pens
= 8 - 4
= 4
Amount that Kaylee needs to buy 4 pens
= 7.60 + 2.40
= $10.00
Cost of each pen
= 10.00 ÷ 4
= $2.50
(b)
Amount that Kaylee has
= 4 x 2.50 + 7.60
= $17.60
Answer(s): (a) $2.50; (b) $17.60