Olivia wants to buy some pens of the same price. If she buys 4 pens, she will have $10.80 left. If she buys 8 pens, she will have no money left.
- How much does each pen cost?
- How much does Olivia have?
(a)
Cost of 4 pens = $10.80
Cost of each pen
= 10.80 ÷ 4
= $2.70
(b)
Since Olivia will have no money left if she buys 8 pens, the amount that she has is the cost of 8 pens.
Amount that Olivia has
= 8 x 2.70
= $21.60
Answer(s): (a) $2.70; (b) $21.60