(1) से (20) तक की संख्याओं में से (2) विषम और (2) सम संख्या चुनने के कितने तरीके हैं?
From numbers (1) to (20), how many ways are there to choose (2) odd and (2) even numbers?
Explanation opens after your attempt
Correct Answer
A. (2025)
Concept
There are (10) odd numbers and (10) even numbers. The ways are \(\binom{10}{2}\binom{10}{2}=2025\).
Why this answer is correct
The correct answer is A. (2025). There are (10) odd numbers and (10) even numbers. The ways are \(\binom{10}{2}\binom{10}{2}=2025\).
Exam Tip
विषम संख्याएं (10) और सम संख्याएं (10) हैं। तरीके \(\binom{10}{2}\binom{10}{2}=2025\) हैं।
Login to save your score, XP, coins and progress.