Susie can buy apples from two stores: a supermarket that sells apples only in bundles of 4, and a convenience store that sells single, unbundled apples. If Susie wants to ensure that the total number of apples she buys is a multiple of 5, what is the minimum number of apples she must buy from the convenience store?
A. 0
B. 1
C. 2
D. 3
E. 4
Answer: A
Source: Manhattan GMAT
Susie can buy apples from two stores: a supermarket that sells apples only in bundles of 4, and a convenience store that
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To answer this question, think of the lowest number possible, then move forward.Vincen wrote: ↑Thu Dec 02, 2021 8:27 amSusie can buy apples from two stores: a supermarket that sells apples only in bundles of 4, and a convenience store that sells single, unbundled apples. If Susie wants to ensure that the total number of apples she buys is a multiple of 5, what is the minimum number of apples she must buy from the convenience store?
A. 0
B. 1
C. 2
D. 3
E. 4
Answer: A
Source: Manhattan GMAT
If I buy 0 from the convenient store, I will have to buy 5 bundles of 4 from the supermarket.
If I buy 1 from the convenient store, I will have to buy 1 bundle of 4 from the supermarket.
Since the question is the minimum number, we go with 0.