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?
A. 
1 apple for $1.20

B. 
6 apples for $3.40

C. 
10 apples for $6.00

D. 
13 apples for $8.20

GPT 3.5 · Answer

The cost per apple is given by $2.40 / 4 = $0.60. Therefore, Ellen could buy 10 apples next week for $0.60 * 10 = $6.00. The correct answer is C. 10 apples for $6.00.