The table shows the prices of puffs at two shops. The puffs are only sold in sets of 3 puffs in Eva's Bakery or sets of 4 puffs in Jean's Bakery.

Shop	Price of puffs
Eva's Bakery	3 for $14
Jean's Bakery	4 for $16

1. Roshel has $21.30. She wants to buy 12 puffs from Jean's Bakery. How much more money does she need to buy the 12 puffs?
2. Carl has $64. He wants to buy the greatest possible number of puffs with his money from one of the two shops. What is the greatest possible number of puffs he can buy with his money?

(a)
Number of sets of 4 puffs
= 12 ÷ 4
= 3

Cost of 12 puffs 
= 3 x 16
= $48

Amount that Roshel needs more to buy the 12 puffs
= 48 - 21.30
= $26.70

(b)
Number of sets of 3 puffs that Carl could buy at Eva's Bakery
= 64 ÷ 14
= 4 r 8

Number of puffs that Carl could buy at Eva's Bakery
= 4 x 3
= 12 

Number of sets of 4 puffs that Carl could buy at Jean's Bakery
= 64 ÷ 16
= 4 r 0

Number of puffs that Carl could buy at Jean's Bakery
= 4 x 4
= 16 (More)

Greatest possible number of puffs that Carl can buy with his money = 16

Answer(s): (a) $26.70; (b) 16