Questionbank: Permutation and Probability

3
Another wonderful question. A classic question that is from a standard template once a layer is removed.

Counting - Toys and Boxes

    Q.3: In how many ways 11 identical toys be placed in 3 distinct boxes such that no box is empty?
    1. 72
    2. 54
    3. 45
    4. 36

 

  • Correct Answer
    Choice C. 45

Detailed Solution

This is nothing but the number of ways of having a, b, c such that a + b + c = 11, where a, b, c are natural numbers. By having them to be natural numbers, we ensure that no box can be empty (no zeroes)

The question is similar to the previous one.

Correct Answer : 10C2 = 45

Our Online Course, Now on Google Playstore!

2IIM's App

Fully Functional Course on Mobile

All features of the online course, including the classes, discussion board, quizes and more, on a mobile platform.


Cache Content for Offline Viewing

Download videos onto your mobile so you can learn on the fly, even when the network gets choppy!

Get it on Google Play
Visit Piverb.com
Visit Wizako.com