LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
92 views
in Aptitude by (54.5k points)
closed by
Three dice are thrown randomly. The probability of coming 3 in at least one die is
1. 180/216
2. 91/216
3. 5/216
4. 125/216

1 Answer

0 votes
by (53.1k points)
selected by
 
Best answer
Correct Answer - Option 2 : 91/216

Formula used:

Probability = Favourable outcomes/Total number of outcomes 

Concept used:

When three dice are thrown then the total number of outcomes = 63 = 216

Calculation:

Total number of outcomes = 216

The probability of not getting 3 on a single die = 5/6

The probability of not getting 3 on all 3 dice = (5/6)3 = 125/216

The probability of getting 3 on at least one die = 1 – The probability of not getting 3 on all 3 dice

⇒ 1 – (125/216)

⇒ 91/216

∴ The required probability is 91/216

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...