Question
5 persons P, Q, R, S, and T are sitting around a round
table. How many times can they sit in different ways so that Q and T do not sit together? type-sscSolution
P, Q, R, S and T Total letters = 5 Now this is the way to sit around the round table = (5-1)! =4! =4×3×2=24 Now to put together a Q and T=3! ×2! =12 Not put together Q and T=24-12=12
More Permutation and combination Questions
What will come in place of the question mark (?) in the following series?
325, 292, 262, 229, ?, 166
- What will come in place of (?) in the given number series.
3, 9, 15, 21, ?, 33 - What will come in place of (?), in the given number series.
1, 1, 2, 3, 5, ?, 13 - 45, 71.01, 98.05, 126.14, ?
3, 8, 18, 33, 53, ?
What will come in place of (?) question mark in the given number series.
12, 27, 44, 65, ?, 139
- What will come in place of (?), in the given number series.
2, 3, 5, 8, 12, ? {(12√5 + 6√5 )} ×{(10√5 - 5√5 )} - 8² + 6² = ?
15, 90, 95, ?, 383, 766Â Â
21, 37, 73, 137, ?, 381
Relevant for Exams:
