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In .^(2n)C(3) :.^(n)C(3) = 11 : 1 then...

In ` .^(2n)C_(3) :.^(n)C_(3) = 11 : 1 ` then n is

A

5

B

6

C

7

D

8

Text Solution

Verified by Experts

The correct Answer is:
B
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