Andrew wants to buy some markers of the same price. If she buys 3 markers, she will have $4.20 left. If she buys 5 markers, she will short of $2.50.
- How much does each marker cost?
- How much does Andrew have?
(a)
Difference in the number of markers
= 5 - 3
= 2
Amount that Andrew needs to buy 2 markers
= 4.20 + 2.50
= $6.70
Cost of each marker
= 6.70 ÷ 2
= $3.35
(b)
Amount that Andrew has
= 3 x 3.35 + 4.20
= $14.25
Answer(s): (a) $3.35; (b) $14.25