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Class 12 Relations And Functions · Mcq Single Correct1 Markstypes_of_relations

Class 12 Maths · Relations And Functions · Mcq Single Correct #120

A family has exactly two brothers \(B_1,B_2\) and their sister \(S\). On \(A=\{B_1,B_2,S\}\), define \(aRb\) to mean that \(a\) is a brother of \(b\), with no child their own brother. Then \(R\) is

✅ Step-by-Step Solution

Final Answer: Option (C): Neither symmetric nor transitive
  1. For two brothers B1,B2 and their sister S, B1RS but not SRB1, so symmetry fails. B1RB2 and B2RB1 hold, but B1RB1 does not, so transitivity fails.

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