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If .^(2n)C(3):^(n)C(2)=44:3, for which o...

If `.^(2n)C_(3):^(n)C_(2)=44:3`, for which of the following value of `r`, the value of `.^(n)C_(r)` will be 15.

A

r=3

B

r=4

C

r=5

D

r=6

Text Solution

Verified by Experts

The correct Answer is:
B
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