Q.

The relation R defined in N as aRb⇔b is divisible by a is

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a

Reflexive but not symmetric

b

Symmetric but not transitive

c

Symmetric and transitive

d

None of these

answer is A.

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Detailed Solution

For any a∈N, we find that a|a therefore R is reflexive but R is not transitive, because aRb does not imply that bRa
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