Question:
If nC12 = nC8, then n is equal to
A. 20
B. 12
C. 6
D. 30
Solution:
A. 20
Explanation:
According to the question,
nC12 = nC8
We know that,
nCr
n – 8 = 12
n = 20
Hence, Option (A) 20 is the correct answer.
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