alleryStart learning →How many permutations of 1, 2, 3 leave no number in its own position?
A3
B6
C1
D2
Answer & Solution
Correct answer: D. 2
Only (2, 3, 1) and (3, 1, 2) have no fixed point, so there are 2.
Keep practising Permutations and Combinations
Browse all Permutations and Combinations questions for CA Foundation, or explore more Quantitative Aptitude topics.
Related questions
In how many ways can 6 identical sweets go to 2 children, a child may get none?Six distinct people are split into two unlabelled groups of 3. How many ways?A team of 4 is chosen from 10 players and one named player must be included. How many waysHow many 5-digit numbers using digits 1 to 5 once each are divisible by 4?Letters of DELHI are arranged with the two vowels together. How many arrangements?In how many ways can at least one item be selected from 5 distinct items?Pick 3 of 6 red balls and 2 of 5 blue balls. How many different selections?Choose 2 vowels from 4 and 2 consonants from 5. How many selections?