If nC12 = nC8, then n = A. 20 B. 12 C. 6 D. 30 – InterviewSolution

InterviewSolution

1.

If nC12 = nC8, then n = A. 20 B. 12 C. 6 D. 30

Answer»

Option : (A)

n = 12 + 8

(ⁿC_x = ⁿC_y ⇒ n = x + y or x = y)

n = 20

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