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GATE 2020 CE (CE1) – Question 4

General Aptitude · Analytical Aptitude: Logical Reasoning and Deduction · 1 mark · Multiple choice

If 0, 1, 2, …, 7, 8, 9 are coded as O, P, Q, …, V, W, X, then 45 is coded as ______.

  1. TS
  2. ST
  3. SS
  4. SU

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Show answer and explanation

Correct answer: (B) ST

Explanation

The mapping is0O,1P,2Q,3R,4S,5T,6U,7V,8W,9X. Thus4 maps toS and5 toT, giving **ST,B**. Preserve digit order.