Two number aa n db aer chosen at random ...

Two number `aa n db` aer chosen at random from the set of first 30 natural numbers. Find the probability that `a^2-b^2` is divisible by 3.

A

`3/29`

B

`3/55`

C

`5/29`

D

`47/87`

Text Solution

Verified by Experts

The correct Answer is:

D

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