Q. 65.0( 1 Vote )

If 18Cx = 18Cx + 2, find x.

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,


x≠x + 2


So, the condition(ii) must be satisfied,


18 = x + x + 2


2x = 16



x = 8.


The value of x is 8.


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