Benjamin wants to buy some files of the same price. If she buys 4 files, she will have $3.70 left. If she buys 8 files, she will short of $1.50.
- How much does each file cost?
- How much does Benjamin have?
(a)
Difference in the number of files
= 8 - 4
= 4
Amount that Benjamin needs to buy 4 files
= 3.70 + 1.50
= $5.20
Cost of each file
= 5.20 ÷ 4
= $1.30
(b)
Amount that Benjamin has
= 4 x 1.30 + 3.70
= $8.90
Answer(s): (a) $1.30; (b) $8.90