Grace wants to buy some files of the same price. If she buys 2 files, she will have $4.10 left. If she buys 6 files, she will short of $2.50.
- How much does each file cost?
- How much does Grace have?
(a)
Difference in the number of files
= 6 - 2
= 4
Amount that Grace needs to buy 4 files
= 4.10 + 2.50
= $6.60
Cost of each file
= 6.60 ÷ 4
= $1.65
(b)
Amount that Grace has
= 2 x 1.65 + 4.10
= $7.40
Answer(s): (a) $1.65; (b) $7.40