Question
Download Solution PDFThree distinct natural numbers chosen at random from 1 to 10. What is the probability that they are consecutive?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
⇒n(S) = 10C3
Favourable outcomes = (1, 2, 3), (2, 3, 4), (3, 4, 5), (4, 5, 6), (5, 6, 7), (6, 7, 8), (7, 8, 9), (8, 9, 10)
⇒n(E) = 8
⇒ P(E) =
=
∴ Option (c) is correct
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.