Vidyalelo
Aptitude · all questions

Probability
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

209

Questions

4/11

Page

Pick an option on a question to see the right answer and solution.

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither blue nor green ?

Select an option to see the answer and solution.

Dev can hit a target 3 times in 6 shots pawan can hit the target 2 times in 6 shots and Lakhan can hit the target 4 times in 4 shots. What is the probability that at least 2 shots hit the target -

Select an option to see the answer and solution.

A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

Select an option to see the answer and solution.

A bag contains 4 red, 5 yellow and 6 pink balls. Two balls are drawn at random. What is the probability that none of the balls drawn are yellow?

Select an option to see the answer and solution.

In a simultaneous throw of two dice, what is the probability of getting a doublet ?

Select an option to see the answer and solution.

An urn contains 6 red, 5 blue and 2 green marbles. If 2 marbles are picked at random, what is the probability that both are red?

Select an option to see the answer and solution.

You toss a coin AND roll a die. What is the probability of getting a tail and a 4 on the die?

Select an option to see the answer and solution.

Two cards are drawn from a pack of well shuffled cards. Find the probability that one is a club and other in King.

Select an option to see the answer and solution.

P and Q sit in a ring arrangement with 10 persons. What is the probability that P and Q will sit together?

Select an option to see the answer and solution.

In a race, the odd favour of cars P, Q, R, S are 1 : 3, 1 : 4, 1 : 5 and 1 : 6 respectively. Find the probability that one of them wins the race.

Select an option to see the answer and solution.

A card is drawn from a pack of 52 cards. The card is drawn at random. What is the probability that it is neither a spade nor a Jack?

Select an option to see the answer and solution.

What is the probability that a number selected from numbers 1, 2, 3, ......, 30, is prime number, when each of the given numbers is equally likely to be selected?

Select an option to see the answer and solution.

In a charity show tickets numbered consecutively from 101 through 350 are placed in a box.
What is the probability that a ticket selected at random (blindly) will have a number with a hundredth digit of 2?

Select an option to see the answer and solution.

From a pack of 52 cards, 3 cards are drawn. What is the probability that one is ace, one is queen and one is jack?

Select an option to see the answer and solution.

If the chance that a vessel arrives safely at a port is then what is the chance that out of 5 vessels expected at least 4 will arrive safely?

Select an option to see the answer and solution.

Find the probability that in a random arrangement of the letters of the word 'UNIVERSITY' the two I's come together.

Select an option to see the answer and solution.

A five-digit number is formed by using digits 1, 2, 3, 4 and 5 without repetition. What is the probability that the number is divisible by 4?

Select an option to see the answer and solution.

An urn contains 6 red, 5 blue and 2 green marbles. If three marbles are picked at random, what is the probability that at least one is blue?

Select an option to see the answer and solution.

A bag contains 7 green and 5 black balls. Three balls are drawn one after the other. The probability of all three balls being green, if the balls drawn are not replaced will be:

Select an option to see the answer and solution.

Two teams Arrogant and Overconfident are participating in a cricket tournament. The odds that team Arrogant will be champion is 5 to 3, and the odds that team Overconfident will be the champion is 1 to 4. What are the odds that either Arrogant or team Overconfident will become the champion?

Select an option to see the answer and solution.