Last week, Ellen bought 4 apples for $2.40. This week she bought 9 apples for $5.40. If the cost per apple remains the same, how many apples could she buy next week?

Question

Last week, Ellen bought 4 apples for $2.40.  This week she bought 9 apples for $5.40.  If the cost per apple remains the same, how many apples could she buy next week?

GPT 3.5 · Answer

Ellen paid 2.40/4=$<<2.40/4=0.60>>0.60 per apple. Ellen paid 5.40/9=$<<5.40/9=0.60>>0.60 per apple. So, Ellen will be able to buy 10 next week. Answer: \boxed{10}.