Gabriel wants to buy some pens of the same price. If she buys 5 pens, she will have $6.80 left. If she buys 7 pens, she will short of $1.40.
- How much does each pen cost?
- How much does Gabriel have?
(a)
Difference in the number of pens
= 7 - 5
= 2
Amount that Gabriel needs to buy 2 pens
= 6.80 + 1.40
= $8.20
Cost of each pen
= 8.20 ÷ 2
= $4.10
(b)
Amount that Gabriel has
= 5 x 4.10 + 6.80
= $27.30
Answer(s): (a) $4.10; (b) $27.30