Alexander wants to buy some files of the same price. If she buys 3 files, she will have $11.60 left. If she buys 7 files, she will have no money left.
- How much does each file cost?
- How much does Alexander have?
(a)
Cost of 4 files = $11.60
Cost of each file
= 11.60 ÷ 4
= $2.90
(b)
Since Alexander will have no money left if she buys 7 files, the amount that she has is the cost of 7 files.
Amount that Alexander has
= 7 x 2.90
= $20.30
Answer(s): (a) $2.90; (b) $20.30