If P 30 5 x C 30 5 then what is the value of x ........

Quantitative Aptitude (CDS) Permutation & Combination

If P(30, 5) = x C( 30 , 5 ) , then what is the value of x ?

120

210

110

Given , P(30,5)= x C(30,5)
Or 30P5 = x 30C5
Or 30!/(30-5)! = x 30!/5!(30-5)!
Or 1 = x /5!
Or x = 5! = 120

Submit Error