Kathy spent $200 to buy some boxes of blueberry and strawberry puffs. Each box of blueberry puffs cost $5 and each box of strawberry puffs cost $6. The blueberry puffs were packed in boxes of 10 puffs each and the strawberry puffs were packed in boxes of 8 puffs each. She bought an equal number of blueberry puffs and strawberry puffs.
(a) How many boxes of blueberry puffs did she buy?
(b) How many boxes of strawberry puffs did she buy?
(a)
Total number of blueberry puffs and strawberry puffs is the same.

LCM of 10 and 8 = 40

Number of boxes for 40 blueberry puffs
= 40 ÷ 10
= 4

Number of boxes for 40 strawberry puffs
= 40 ÷ 8
= 5

1 set = 4 boxes of blueberry puffs and 5 boxes of strawberry puffs

Cost of 1 set
= 4 x 5 + 5 x 6
= 20 + 30
= $50

Number of sets
= 200 ÷ 50
= 4

Boxes of blueberry puffs
= 4 x 4
= 16

(b)
Boxes of strawberry puffs
= 4 x 5
= 20

Answer(s): (a) 16; (b) 20