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.
2! x 19!
18!
18! x 2!
19!
Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api
# | Quiz |
---|---|
1
Discuss
|
From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least three men are in the committee. In how many ways can it be done?
Solution |
2
Discuss
|
There are 6 letters for 3 envelopes. In how many different ways can the envelopes be filled?
Solution |
3
Discuss
|
How many rectangles can be formed out of a chess board ?
Solution |
4
Discuss
|
What is the probability of getting at least one six in a single throw of three unbiased dice?s
Solution |
5
Discuss
|
Find the number of ways in which mixed double tennis game can be arranged amongst 9 married couples if no husband and wife play in the same game
Solution |
6
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 |
7
Discuss
|
A fair coin is tossed 5 times. What is the probability of getting at least three heads on consecutive tosses?
Solution |
8
Discuss
|
How many integers between 1000 and 10000 have no digits other than 4, 5, or 6?
Solution |
9
Discuss
|
If 18Cr = 18Cr+2 ; find rC5.
Solution |
10
Discuss
|
If A and B are two independent events with P(A) = 3/5 and P(B) = 4/9 , then P(A' ∩ B' ) equals
Solution |
# | Quiz |
Copyright © 2020 Inovatik - All rights reserved