Question 8
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What is the value of n?
I. nC2 = 28.
II. nP2 = 56.
- A Statement I alone is sufficient, but Statement II alone is not sufficient
- B Statement II alone is sufficient, but Statement I alone is not sufficient
- C Each statement alone is sufficient Correct
- D Both statements together are sufficient, but neither statement alone is sufficient
- E Statements I and II together are not sufficient
Correct Answer: Option C
I: n(n − 1)/2 = 28 → n = 8. Sufficient.
II: n(n − 1) = 56 → n = 8. Sufficient.
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