In a code language 'MATHEMATICS' is written as 'LBSIDNZUHDR'. How is 'CHEMISTRY' written in that code…

In a code language 'MATHEMATICS' is written as 'LBSIDNZUHDR'. How is 'CHEMISTRY' written in that code language?
  1. DIDLHRSSX
  2. BIDNHTSSX
  3. BIDLHTSSX
  4. DGFLIRUQZ

Solution

In coding MATHEMATICS to LBSIDNZUHDR, the letters at odd positions are decreased by 1 and the letters at even positions are increased by 1. Applying the same to CHEMISTRY: C-1=B, H+1=I, E-1=D, M+1=N, I-1=H, S+1=T, T-1=S, R+1=S, Y-1=X. The code is BIDNHTSSX.

Asked in: CSAT 2021

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