Jonathan wants to buy some files of the same price. If she buys 10 files, she will have $8.10 left. If she buys 12 files, she will have no money left.
- How much does each file cost?
- How much does Jonathan have?
(a)
Cost of 2 files = $8.10
Cost of each file
= 8.10 ÷ 2
= $4.05
(b)
Since Jonathan will have no money left if she buys 12 files, the amount that she has is the cost of 12 files.
Amount that Jonathan has
= 12 x 4.05
= $48.60
Answer(s): (a) $4.05; (b) $48.60