Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyIf a man and his wife enter a bus in which five seats are vacant,then the number of different ways in which they can be seated is
- A$2$
- B$5$
- C$20$
- D$40$
Explore More
Similar Questions
Find $r$ if $^{5}P_{r} = 2 \times ^{6}P_{r-1}$.
Medium
View SolutionHow many numbers lying between $999$ and $10000$ can be formed with the help of the digits $0, 2, 3, 6, 7, 8$ when the digits are not to be repeated?
Easy
View SolutionAll possible four-digit numbers are formed using the digits $0, 1, 2, 3$ such that no digit is repeated. The number of even numbers among them is
Medium
View SolutionIn how many ways can $5$ examination papers be arranged so that the physics and chemistry papers never come together?
Easy
View SolutionHow many $5$-digit numbers can be formed using the digits $1$ and $2$,such that exactly one digit is different from the others?
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