Jack wants to buy some pencils of the same price. If she buys 2 pencils, she will have $7.90 left. If she buys 4 pencils, she will short of $1.50.
- How much does each pencil cost?
- How much does Jack have?
(a)
Difference in the number of pencils
= 4 - 2
= 2
Amount that Jack needs to buy 2 pencils
= 7.90 + 1.50
= $9.40
Cost of each pencil
= 9.40 ÷ 2
= $4.70
(b)
Amount that Jack has
= 2 x 4.70 + 7.90
= $17.30
Answer(s): (a) $4.70; (b) $17.30