Lynn spent $240 to buy some boxes of banana and vanilla wafers. Each box of banana wafers cost $8 and each box of vanilla wafers cost $10. The banana wafers were packed in boxes of 8 wafers each and the vanilla wafers were packed in boxes of 5 wafers each. She bought an equal number of banana wafers and vanilla wafers.
(a) How many boxes of banana wafers did she buy?
(b) How many boxes of vanilla wafers did she buy?
(a)
Total number of banana wafers and vanilla wafers is the same.

LCM of 8 and 5 = 40

Number of boxes for 40 banana wafers
= 40 ÷ 8
= 5

Number of boxes for 40 vanilla wafers
= 40 ÷ 5
= 8

1 set = 5 boxes of banana wafers and 8 boxes of vanilla wafers

Cost of 1 set
= 5 x 8 + 8 x 10
= 40 + 80
= $120

Number of sets
= 240 ÷ 120
= 2

Boxes of banana wafers
= 2 x 5
= 10

(b)
Boxes of vanilla wafers
= 2 x 8
= 16

Answer(s): (a) 10; (b) 16