Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
MediumHow many numbers can be formed using the digits $1, 2, 3, 4$ if repetition of digits is not allowed?
- A$^4P_4$
- B$^4P_1 + ^4P_2 + ^4P_3 + ^4P_4$
- C$^4P_1 + ^4P_2 + ^4P_3$
- D$^4P_3$
Explore More
Similar Questions
The total number of injections (one-one into mappings) from the set $A = \{a_{1}, a_{2}, a_{3}, a_{4}\}$ to the set $B = \{b_{1}, b_{2}, b_{3}, b_{4}, b_{5}, b_{6}, b_{7}\}$ is:
The number of different words that can be formed out of the letters of the word $MORADABAD$ taken four at a time is
Difficult
View SolutionHow many $6$-digit numbers can be formed using the digits $1, 2, 3,$ and $4$ such that the number contains exactly two pairs of identical digits?
Medium
View SolutionThe number of integers greater than $6000$ that can be formed by using the digits $0, 5, 6, 7, 8,$ and $9$ without repetition is
$n$ cadets have to stand in a row. If all possible permutations are equally likely,then the probability that two particular cadets stand side by side is
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo