Start learning →

Permutations of n objects where p are alike and the rest all differ number:

An factorial plus p factorial
Bn factorial minus p factorial
Cn factorial over p factorial
Dn factorial times p factorial
Answer & Solution
Correct answer: C. n factorial over p factorial
1. Swapping the alike ones changes nothing. 2. So divide out their arrangements. 3. It is n factorial over p factorial. _Source: syllabus Mathematics, Chapter 7, Permutations and Combinations._
Practise this question with Quill — CAT →

Keep practising Permutations and Combinations

Browse all Permutations and Combinations questions for CAT, or explore more Quantitative Reasoning topics.

Start a Permutations and Combinations lesson →