Isaac wants to buy some markers of the same price. If she buys 3 markers, she will have $3.50 left. If she buys 5 markers, she will short of $1.80.
- How much does each marker cost?
- How much does Isaac have?
(a)
Difference in the number of markers
= 5 - 3
= 2
Amount that Isaac needs to buy 2 markers
= 3.50 + 1.80
= $5.30
Cost of each marker
= 5.30 ÷ 2
= $2.65
(b)
Amount that Isaac has
= 3 x 2.65 + 3.50
= $11.45
Answer(s): (a) $2.65; (b) $11.45