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A vending machine sells four brands of candy bars. If Sarah buys a total of \(10\) candy bars from the machine, how many combinations of the four brands could she purchase? (Assume that there are at least \(10\) of each type of candy bar in the vending machine.)
A. \(256\)
B. \(286\)
C. \(3000\)
D. \(\dfrac{10!}{4!}\)
E. \(\dfrac{40!}{30!\cdot 10!}\)
Answer: B
Source: Manhattan GMAT
A. \(256\)
B. \(286\)
C. \(3000\)
D. \(\dfrac{10!}{4!}\)
E. \(\dfrac{40!}{30!\cdot 10!}\)
Answer: B
Source: Manhattan GMAT
