Risa had some money. If she buys 4 chocolate bars, she will have $6 left. If she buys 6 chocolate bars, she will have $2 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.
4 C + 6 = 6 C + 2
6 C - 4 C = 6 - 2
2 C = 4
1 C = 4 ÷ 2 = 2
Cost of each chocolate bar = $2
(b)
Total amount that Risa had
= 6 x 2 + 2
= 12 + 2
= $14
Answer(s): (a) $2; (b) $14