Maya wants to buy some files of the same price. If she buys 4 files, she will have $4.20 left. If she buys 6 files, she will short of $1.90.
- How much does each file cost?
- How much does Maya have?
(a)
Difference in the number of files
= 6 - 4
= 2
Amount that Maya needs to buy 2 files
= 4.20 + 1.90
= $6.10
Cost of each file
= 6.10 ÷ 2
= $3.05
(b)
Amount that Maya has
= 4 x 3.05 + 4.20
= $16.40
Answer(s): (a) $3.05; (b) $16.40