What is the number of different messages that can be represented by three 0’s and two 1’s?

This question was previously asked in
NDA (Held On: 17 April 2016) Maths Previous Year paper
View all NDA Papers >
  1. 10
  2. 9
  3. 8
  4. 7

Answer (Detailed Solution Below)

Option 1 : 10
Free
NDA 01/2025: English Subject Test
30 Qs. 120 Marks 30 Mins

Detailed Solution

Download Solution PDF

Concept:

Suppose a set of n objects has n1 of one kind of object, n2 of a second kind, n3 of a third kind, and so on with n = n1 + n2 + n3  +...+ nk then the number of distinguishable permutations of the n objects is  = 

 

Calculation:

Given: Three 0’s and two 1’s

0

0

0

1

1

 

Total number = 3 + 2 = 5

In the set of 5 number has 3 number of one kind and 2 number of the second kind.

Therefore, Number of different messages that can be represented by three 0's and two 1's = 

Latest NDA Updates

Last updated on Jun 18, 2025

->UPSC has extended the UPSC NDA 2 Registration Date till 20th June 2025.

-> A total of 406 vacancies have been announced for NDA 2 Exam 2025.

->The NDA exam date 2025 has been announced. The written examination will be held on 14th September 2025.

-> The selection process for the NDA exam includes a Written Exam and SSB Interview.

-> Candidates who get successful selection under UPSC NDA will get a salary range between Rs. 15,600 to Rs. 39,100. 

-> Candidates must go through the NDA previous year question paper. Attempting the NDA mock test is also essential. 

More Word Problems Questions

More Permutations and Combinations Questions

Hot Links: teen patti joy vip lucky teen patti teen patti online game