TS ICET 19 Aug 2021 Shift 2 Paper

In a certain code the alphabets

A, B, C, \ldots

are given ranks

1,2,3, \.......

respectively, and then

{n}^{\text "th "}

letter is coded as

{k}^{\text "th "}

letter where

1 \≤ k \≤ 26

and

5 n \≡k( mod 26)

. For example, the

12^{\text "th "}

letter

{L}

is coded as the

8^{\text "th "}

letter

{H}

because

60 \≡8(

mod 26

)

. For decoding reverse process is followed. Based on this answer questions from 56 to 60

Question : 58 of 200

Marks: +1, -0

The letters that are not changed under the given code are

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