<human>:  Cynthia eats one serving of ice cream every night. She buys cartons of ice cream with 15 servings of ice cream per carton at a cost of $4.00 per carton. After 60 days, how much will she spend on ice cream?
<bot>: How many containers of ice cream will Cynthia need after 60 days? ** Each container of ice cream has 15 servings and she eats 1 serving a night so after 60 days she will need 60/15 = 4 containers of ice cream
How much will it cost her? ** If each carton costs $4.00 and she needs 4 containers then it will cost her 4*4 = $<<4*4=16.00>>16.00
#### 16