Probability - Discussion Page For Q.282 | Aptitude Questions and Answers | Aptitude Free Online-Tests | LucentBlackBoard

Home > Arithmetic Aptitude > Probability > Questions and Answers Discussion

A dice is rolled twice. In how many outcomes is the sum of the numbers shown on the two dice is a prime number?

A.	15	B.	4
C.	5	D.	14

Answer and Explanation

Answer:4

Explanation:
The outcomes in which the sum of the numbers that turn the 3 occasions is 17 or 18 are shown below. 5,6,6 ; 6, 5, 6 ; 6, 6, 5 and 6, 6, 6

There are 4 such outcomes.

Comment on this Question
Name:

LucentBlackBoard.com has the web's largest collection of over 15,000 aptitude questions and answers with detailed explanation which include subjects like Arithmetic Aptitude, Logical Reasoning, Verbal Ability, General Knowledge, Programming Skills and more!

Our online education portal provides a unique and standard learning experience for students. We enable the students to prepare for most of the entrance and competitive exams like MBA (MAT, GMAT), Engineering (IIT-JEE, AIEEE, GATE), Employment (IAS, Bank PO, Railway, UGCNET), Civil Services and many more. We bring you the best in education by providing technical excellence and creating innovative solutions. We provide facility for online test preparation that offers 24/7 access to relevant subject matter and relative tests. These test preparations help the students to groom themselves and get prepared before actually facing the examination.