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?
12
13
17
18
Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api
# | Quiz |
---|---|
1
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 |
2
Discuss
|
How many parallelograms will be formed if 7 parallel horizontal lines intersect 6 parallel vertical lines?
Solution |
3
Discuss
|
The number of circles that can be drawn out of 10 points of which 7 are collinear is
Solution |
4
Discuss
|
Ten participants are participating in a competition. In how many ways can the first three prizes be won?
Solution |
5
Discuss
|
A coin is tossed 5 times. What is the probability that head appears an odd number of times?
Solution |
6
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 |
7
Discuss
|
A biased coin in tossed thrice. What is the probability that heads turns out at least twice considering that the probability of a head is 60%?
Solution |
8
Discuss
|
If C(n, 7) = C(n, 5), find n
Solution |
9
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 |
10
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 |
# | Quiz |
Copyright © 2020 Inovatik - All rights reserved