Risa had some money. If she buys 5 lollipops, she will have $6 left. If she buys 7 lollipops, she will have $2 left.
- How much does each lollipop cost?
- How much money does she have?
(a)
Let 1 L be the price of 1 lollipop.
5 L + 6 = 7 L + 2
7 L - 5 L = 6 - 2
2 L = 4
1 L = 4 ÷ 2 = 2
Cost of each lollipop = $2
(b)
Total amount that Risa had
= 7 x 2 + 2
= 14 + 2
= $16
Answer(s): (a) $2; (b) $16