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A letter is known to have come from either "TATANAGAR" or "CALCUTTA'' .On the envelope just two consecutive letters are visible. if the visible letters are TA, then the probability that the letter has come from "CALCUTTA" is (A) `4/11` (B) `1/3` (C) `5/12` (D) `1/7`

A

`7/11`

B

`6/11`

C

`5/11`

D

`4/11`

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The correct Answer is:
D
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