There are 20 people among whom two are sisters. Find the number of ways in which we can arrange them around a circle so that there is exactly one person between the two sisters.
-
1]
2! x 19!
-
2]
18!
-
3]
18! x 2!
-
4]
19!
Solution
Top 5 Similar Quiz - Based On AI&ML
Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api
| # | Quiz |
|---|---|
|
1
Discuss
|
If
SolutionAnswer :1/2 |
|
2
Discuss
|
From a pack of 52 playing cards, two cards are drawn together at random. Calculate the probability of both the cards being the Kings.
Solution |
|
3
Discuss
|
How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?
Solution |
|
4
Discuss
|
In how many ways the letters of the word “UNDERDOG” can be arranged such that the first and last letters are same and no two vowels are together?
Solution |
|
5
Discuss
|
In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?
Solution |
|
6
Discuss
|
If A, B and C are mutually exclusive and exhaustive events of a random experiment such that P(B)=3/2P(A) and P(C)=1/2P(B), then P(A∪C)=
Solution |
|
7
Discuss
|
How many numbers can be formed from 1, 2, 3, 4, 5 (without repetition), when the digit at the unit’s place must be greater than that in the ten’s place?
Solution |
|
8
Discuss
|
In how many different ways can the letters of the word 'DETAIL' be arranged in such a way that the vowels occupy only the odd positions?
Solution |
|
9
Discuss
|
In how many ways can a cricketer can score 200 runs with fours and sixes only?
Solution |
|
10
Discuss
|
A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw?
Solution |
| # | Quiz |
