Q. 65.0( 1 Vote )

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

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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