यदि (R) एक संबंध है और (\operatorname{Dom}(R)={2,3,5}), (\operatorname{Ran}(R)={7,11}), तो (R) कम से कम कितने युग्मों वाला हो सकता है?
If (R) is a relation with (\operatorname{Dom}(R)={2,3,5}) and (\operatorname{Ran}(R)={7,11}), what is the minimum possible number of pairs in (R)?
Explanation opens after your attempt
Correct Answer
B. (3)
Concept
All three domain elements must appear in some pair, so at least (3) pairs are needed. The (2) range elements can be covered within these (3) pairs.
Why this answer is correct
The correct answer is B. (3). All three domain elements must appear in some pair, so at least (3) pairs are needed. The (2) range elements can be covered within these (3) pairs.
Exam Tip
तीनों domain अवयवों को किसी न किसी युग्म में आना होगा, इसलिए कम से कम (3) युग्म चाहिए। range के (2) अवयव इन्हीं (3) युग्मों में कवर किए जा सकते हैं।
Login to save your score, XP, coins and progress.