Dana had some money. If she buys 12 chocolate bars, she will have $5 left. If she buys 14 chocolate bars, she will have $1 left.
- How much does each chocolate bar cost?
- How much money does she have?
(a)
Let 1 C be the price of 1 chocolate bar.
12 C + 5 = 14 C + 1
14 C - 12 C = 5 - 1
2 C = 4
1 C = 4 ÷ 2 = 2
Cost of each chocolate bar = $2
(b)
Total amount that Dana had
= 14 x 2 + 1
= 28 + 1
= $29
Answer(s): (a) $2; (b) $29