Q. 25.0( 6 Votes )

If nC12 = nC5, find the value of n.

Answer :

We know that if , then one of the following conditions need to be satisfied:


i. p = q


ii. n = p + q


From the problem we can say that,


12≠5


So, the condition(ii) must be satisfied,


n = 12 + 5


n = 17.


The value of n is 17.


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