A candy cost 20 cents and a packet of 12 similar candies costs $1.00.

Question

A candy cost 20 cents and a packet of 12 similar candies cost $1.00. Lilly wanted to buy exactly 40 candies. What is the minimum amount that Lilly spent? 

 

Please tell me the final answer.

Answer 1

Buy the most packages you can and then buy single items to make 40

 

Three packages = 36 candies for $3

 

Four singles at $0.20 = 80 cents

 

Total $3.80