What is the sum of all 4 digit numbers that can be formed by the digits 1, 2, 3, 4 each exactly once
55566
66660
56456
84738
Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api
# | Quiz |
---|---|
1
Discuss
|
If P(A)=2/5, P(B)=3/10 and P(A ∩ B) =51, then P(A' | B'). P(B' | A') is equal to
Solution |
2
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 |
3
Discuss
|
There are seven pairs of black shoes and five pairs of white shoes. They are all put into a box and shoes are drawn one at a time. To ensure that at least one pair of black shoes are taken out, what is the number of shoes required to be drawn out?
Solution |
4
Discuss
|
In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together
Solution |
5
Discuss
|
In how many ways can 10 people line up at a ticket window of a railway station?
Solution |
6
Discuss
|
Three chairs are arranged in a row facing three other chairs. 4 boys and 2 girls are to be seated on these chairs such that girls are always facing each other. In how many ways can they be seated?
Solution |
7
Discuss
|
How many parallelograms will be formed if 7 parallel horizontal lines intersect 6 parallel vertical lines?
Solution |
8
Discuss
|
If a team of 4 persons is to be selected from 8 males and 8 females, then in how many ways can the selections be made to include at least 1 female
Solution |
9
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 |
10
Discuss
|
How many four-digit numbers, each divisible by 4 can be formed using the digits 5, 6, 7, 8, 9, repetition of digits being allowed in any number?
Solution |
# | Quiz |
Copyright © 2020 Inovatik - All rights reserved