Lynn spent $180 to buy some boxes of blueberry and banana wafers. Each box of blueberry wafers cost $6 and each box of banana wafers cost $10. The blueberry wafers were packed in boxes of 12 wafers each and the banana wafers were packed in boxes of 10 wafers each. She bought an equal number of blueberry wafers and banana wafers.
(a) How many boxes of blueberry wafers did she buy?
(b) How many boxes of banana wafers did she buy?
(a)
Total number of blueberry wafers and banana wafers is the same.

LCM of 12 and 10 = 60

Number of boxes for 60 blueberry wafers
= 60 ÷ 12
= 5

Number of boxes for 60 banana wafers
= 60 ÷ 10
= 6

1 set = 5 boxes of blueberry wafers and 6 boxes of banana wafers

Cost of 1 set
= 5 x 6 + 6 x 10
= 30 + 60
= $90

Number of sets
= 180 ÷ 90
= 2

Boxes of blueberry wafers
= 2 x 5
= 10

(b)
Boxes of banana wafers
= 2 x 6
= 12

Answer(s): (a) 10; (b) 12