Mary had some money. If she buys 11 lollipops, she will have $7 left. If she buys 14 lollipops, she will have $1 left.
- How much does each lollipop cost?
- How much money does she have?
(a)
Let 1 L be the price of 1 lollipop.
11 L + 7 = 14 L + 1
14 L - 11 L = 7 - 1
3 L = 6
1 L = 6 ÷ 3 = 2
Cost of each lollipop = $2
(b)
Total amount that Mary had
= 14 x 2 + 1
= 28 + 1
= $29
Answer(s): (a) $2; (b) $29