Jacob wants to buy some pencils of the same price. If she buys 2 pencils, she will have $3.10 left. If she buys 4 pencils, she will short of $1.50.
- How much does each pencil cost?
- How much does Jacob have?
(a)
Difference in the number of pencils
= 4 - 2
= 2
Amount that Jacob needs to buy 2 pencils
= 3.10 + 1.50
= $4.60
Cost of each pencil
= 4.60 ÷ 2
= $2.30
(b)
Amount that Jacob has
= 2 x 2.30 + 3.10
= $7.70
Answer(s): (a) $2.30; (b) $7.70