Tina had some money. If she buys 11 chocolate bars, she will have $10 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.
11 C + 10 = 14 C + 1
14 C - 11 C = 10 - 1
3 C = 9
1 C = 9 ÷ 3 = 3
Cost of each chocolate bar = $3
(b)
Total amount that Tina had
= 14 x 3 + 1
= 42 + 1
= $43
Answer(s): (a) $3; (b) $43