Question

Multiple Choice 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

Answer 1

First, we need to calculate the cost per apple based on the purchases Ellen made last week and this week.

**Last week:**
- Cost for 4 apples = $2.40
- Cost per apple = \( \frac{2.40}{4} = 0.60 \) dollars per apple

**This week:**
- Cost for 9 apples = $5.40
- Cost per apple = \( \frac{5.40}{9} = 0.60 \) dollars per apple

The cost per apple remains consistent at $0.60.

Now, we need to check the options given, in order to see how many apples she could buy next week at this price:

1. **Option A:** 1 apple for $1.20
- Cost per apple = \( \frac{1.20}{1} = 1.20 \) (Not correct, as it should be $0.60)

2. **Option B:** 6 apples for $3.40
- Cost per apple = \( \frac{3.40}{6} \approx 0.5667 \) (Not correct, as it should be $0.60)

3. **Option C:** 10 apples for $6.00
- Cost per apple = \( \frac{6.00}{10} = 0.60 \) (Correct, matches the calculation)

4. **Option D:** 13 apples for $8.20
- Cost per apple = \( \frac{8.20}{13} \approx 0.6308 \) (Not correct, as it should be $0.60)

The only option that maintains the cost per apple at $0.60 is **Option C: 10 apples for $6.00**. Therefore, the answer is:

**C. 10 apples for $6.00**