CSAT 2021

Q. In a code language ‘MATHEMATICS’ is written as ‘LBSIDNZUHDR’. How is CHEMISTRY’ written in that code language?

(a) DIDLHRSSX
(b) BIDNHTSSX
(c) BIDLHTSSX
(d) DGFLIRUQZ
Correct Answer: (b) BIDNHTSSX

Question from UPSC Prelims 2021 CSAT Paper

Explanation :

MATHEMATICS – CHEMISTRY

The pattern followed here is:-

For the letters in odd places(1st,3rd.5th.7th.9th,11th) Positional value of the letter – 1
For the letters in even places(2nd.4th.6th.8th,10th) Positional value of the letter + 1

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