Sunita works in an SBI branch in Delhi. She sorts a bundle of ₹500 notes. If relation R is defined as 'has the same serial number as', then R is: A. An identity relation B. Only reflexive C. Only symmetric D. Empty relation Answer: A) An identity relation Explanation: Since every real ₹500 note has a completely unique serial number, a note can only share a serial number with itself. Thus R = {(a, a) for all notes a}, which is the identity relation.

imo class 12 relations and functions

Sunita works in an SBI branch in Delhi. She sorts a bundle of ₹500 notes. If relation R is defined as 'has the same serial number as', then R is:

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Sunita works in an SBI branch in Delhi. She sorts a bundle of ₹500 notes. If relation R is defined as 'has the same serial number as', then R is:

A. An identity relation
B. Only reflexive
C. Only symmetric
D. Empty relation

Answer: A) An identity relation

Explanation: Since every real ₹500 note has a completely unique serial number, a note can only share a serial number with itself. Thus R = {(a, a) for all notes a}, which is the identity relation.

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