A, B, C, D and E sit on five chairs all of which are facing north. C will sit only on the leftmost chair and B will not sit anywhere to the left of A. In how many ways they can be seated?
10
18
36
12
Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api
# | Quiz |
---|---|
1
Discuss
|
The number of triangles that can be formed by choosing the vertices from a set of 12 points, seven of which lie on the same straight line, is
Solution |
2
Discuss
|
A box contains 5 green, 4 yellow and 3 white marbles. three marbles are drawn at random. What is the probability that all they are not of the same colour?
Solution |
3
Discuss
|
In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?
Solution |
4
Discuss
|
There are three rooms in a motel: one single, one double, and one for four persons. How many ways are there to house seven persons in these rooms?
Solution |
5
Discuss
|
From among the 36 students in a class, one leader and one class representative are to be appointed. In how many ways can this be done?
Solution |
6
Discuss
|
In how many ways can the letters of the word 'LEADER' be arranged?
Solution |
7
Discuss
|
A person tosses an unbiased coin. When head turns up, he gets Rs.8 and tail turns up he loses Rs.4. If 3 coins are tossed, what is probability that he gets a profit of Rs.12?
SolutionPerson will get profit of Rs 12 only when there is 2H (Head) and 1T (Tail) H + H + T = 12 8 + 8 + (-4) = 12 Total outcome of 2 head and 1 tail = 23 = 8 i.e (T, H, TH, HT, HH, HHT, HTH, THH) Total event with 2H and 1 T is 3 therfore probability = 3/8 |
8
Discuss
|
A committee of 8 members is to be selected from a group of 12 male and 10 female members. In how many ways the committee is selected such that at most two and at least one male member are there in the committee?
Solution |
9
Discuss
|
If ,, are probabilities of three mutually exclusive events, then
SolutionAnswer :1/2 |
10
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 |
# | Quiz |
Copyright © 2020 Inovatik - All rights reserved