If , then…

MATHEMATICS · Single correct · CBSE · Mathematics · Permutations and Combinations · Permutations and Combinations

Problem

If 2n+1Pn−1:2n−1Pn=7:10{}^{2n+1}P_{n-1}:{}^{2n-1}P_n=7:10, then nP3{}^nP_3 equals (1) 6060 (2) 2424 (3) 120120 (4) 66

Related theory

Browse the problem library