Hello Aspirants. Welcome to Online Maths in AffairsCloud.com. Here we are creating question sample in **Probability**, which is common for all the competitive exams. We have included Some questions that are repeatedly asked in exams !!

**A box contain 4 white, 3 blue and 2 black marbles. If 2 marbles are picked up at random. What is the probability that both of them are black ?**

A.20

B.1/36

C.1/22

D.36

E.None of these**An urn contains 6 maroon, 3 pink and 4 white balls. If three balls are drawn What is the probability that all are pink or white?**

A.11/328

B.7/212

C.5/286

D.9/127

E.None of these**From a pack of 52 cards 3 cards are drawn one by one without replacements.Find the probability that both of them are king ?**

A.132/1338

B.32/2340

C.1/5525

D.4/2755

E.None of these**If two dice are thrown simultaneously, what is the probability that the sum of the numbers appeared is less than seven?**

A.5/12

B.7/12

C.6/17

D.13/27

E.None of these**A box contains 5 white, 4 green, 2 blue and 3 black marbles. If 2 marbles are drawn at random, what is the probability that both are green or at least one is green ?**

A.46/91

B.32/97

C.16/75

D.1/54

E.None of these**In a shelf, there are 7 Banking awareness, 6 English and 5 GK books. One book is picked up randomly. What is the probability that it is neither in Banking awareness nor in GK ?**

A.1/13

B.2/17

C.1/3

D.12/27

E.None of these**A suitcase contains 4 blue shirts, 5 red shirts and 3 white shirts.If 4 shirts are drawn what is the probability that exactly one of them is blue ?**

A.113/218

B.14/167

C.123/234

D.224/495

E.None of these**A bag contains 4 white, 8 black and 6 blue balls. If two balls are drawn at random, find the probability of both the balls being black?**

A.22/137

B.14/123

C.28/253

D.7/105

E.None of these**The ratio of the number of girls to the number of boys is the 5 : 2 in a class of 21 students. A group of three students is to to be selected at random amongst them. What is the probability that the selected group of students contain one boy and two girls?**

A.45/266

B.32/343

C.120/217

D.46/267

E.None of these**A bag 5 red and 8 white balls.Two draws of three balls each are made.What is the probability that the balls were pink in the first draw and white in the second draw ?**

A.23/345

B.140/20449

C.20440/110

D.230/23454

E.None of these

AffairsCloud Recommends IBPSGuide Mock Test