Multiple Choice Questions on A bag contains five red balls and four green balls If three balls are selected at random what is th........... for CDS Exam Preparation

Back to Main Page

Multiple Choice Questions

A bag contains five red balls and four green balls If three balls are selected at random what is th...........

Quantitative Aptitude (CDS) Probability
    Download Solution PDF

    .A bag contains five red balls and four green balls. If three balls are selected at random, what is the probability that none is red?

    1/9
     

    Incorrect Answer

    1/21
     

    Correct Answer

    1/5
     

    Incorrect Answer

    1/2

    Incorrect Answer
    छोटे Courses बड़े Results
    Master Probability
    Prepare through Micro-courses
    Try Now
    Explanation:

    Total balls = 9
    Red balls = 5
    None of the three balls are red i.e they are all green.
    Therefore , P ( they are all green ) = 4/9 × 3/8 × 2/7
    = 1/21

    By: bhavesh kumar singh
    ProfileResources

    Let's Discuss

    Master
    Probability
    With abhipedia
    Micro Courses
    Try Now
    What our students have to say
    Review on us
    Download Abhipedia Android App

    Access to prime resources

    Downlod from playstore
    download android app download android app for free