Olivia wants to buy some pens of the same price. If she buys 5 pens, she will have $6.60 left. If she buys 7 pens, she will have no money left.
- How much does each pen cost?
- How much does Olivia have?
(a)
Cost of 2 pens = $6.60
Cost of each pen
= 6.60 ÷ 2
= $3.30
(b)
Since Olivia will have no money left if she buys 7 pens, the amount that she has is the cost of 7 pens.
Amount that Olivia has
= 7 x 3.30
= $23.10
Answer(s): (a) $3.30; (b) $23.10