Ethan wants to buy some markers of the same price. If she buys 3 markers, she will have $3.90 left. If she buys 5 markers, she will short of $1.20.
- How much does each marker cost?
- How much does Ethan have?
(a)
Difference in the number of markers
= 5 - 3
= 2
Amount that Ethan needs to buy 2 markers
= 3.90 + 1.20
= $5.10
Cost of each marker
= 5.10 ÷ 2
= $2.55
(b)
Amount that Ethan has
= 3 x 2.55 + 3.90
= $11.55
Answer(s): (a) $2.55; (b) $11.55