Charlotte wants to buy some markers of the same price. If she buys 4 markers, she will have $7.10 left. If she buys 8 markers, she will short of $2.70.
- How much does each marker cost?
- How much does Charlotte have?
(a)
Difference in the number of markers
= 8 - 4
= 4
Amount that Charlotte needs to buy 4 markers
= 7.10 + 2.70
= $9.80
Cost of each marker
= 9.80 ÷ 4
= $2.45
(b)
Amount that Charlotte has
= 4 x 2.45 + 7.10
= $16.90
Answer(s): (a) $2.45; (b) $16.90