Abi had some money. If she buys 12 mochi balls, she will have $6 left. If she buys 14 mochi balls, she will have $2 left.
- How much does each mochi ball cost?
- How much money does she have?
(a)
Let 1 M be the price of 1 mochi ball.
12 M + 6 = 14 M + 2
14 M - 12 M = 6 - 2
2 M = 4
1 M = 4 ÷ 2 = 2
Cost of each mochi ball = $2
(b)
Total amount that Abi had
= 14 x 2 + 2
= 28 + 2
= $30
Answer(s): (a) $2; (b) $30