📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    âš¡ Month End Offer - Flat 52% Off On All Courses! Enroll Now âš¡
    00:00:00 AM Left

    Question

    In how many ways can a squad of 10 people be selected

    from 9 trainees and 5 supervisors such that the squad has at least 8 trainees?
    A 90 Correct Answer Incorrect Answer
    B 92 Correct Answer Incorrect Answer
    C 95 Correct Answer Incorrect Answer
    D 98 Correct Answer Incorrect Answer

    Solution

    Case I: 8 trainees and 2 supervisors
    Number of ways = 9C8 × 5C2 = 9 × 10 = 90 ways
    Case II: 9 trainees and 1 supervisor
    Number of ways = 9C9 × 5C1 = 1 × 5 = 5 ways
    Total number of ways = 90 + 5 = 95 ways

    Practice Next
    More Permutation and combination Questions

    Relevant for Exams:

    ask-question