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Question

In a certain code language, RAM is written as TYO. How will CPU be written as in that language?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
ENW

Coding Language Solution: RAM to TYO and CPU

The question presents a coding puzzle where a word is transformed based on a specific pattern. We need to identify this pattern using the example "RAM" coded as "TYO" and then apply it to code the word "CPU".

Analyzing the RAM to TYO Code

Let's determine the shift in alphabet position for each letter:

  • R to T: R is the 18th letter and T is the 20th letter. The shift is $20 - 18 = +2$.
  • A to Y: A is the 1st letter and Y is the 25th letter. The shift is $25 - 1 = +24$. In a 26-letter alphabet, a shift of +24 is equivalent to $24 - 26 = -2$.
  • M to O: M is the 13th letter and O is the 15th letter. The shift is $15 - 13 = +2$.

The pattern observed is a sequence of shifts: +2, -2, +2.

Applying the Pattern to CPU

Now, we apply the same +2, -2, +2 pattern to the letters of "CPU":

  • C: C is the 3rd letter. Applying the first shift (+2): $3 + 2 = 5$. The 5th letter is E.
  • P: P is the 16th letter. Applying the second shift (-2): $16 - 2 = 14$. The 14th letter is N.
  • U: U is the 21st letter. Applying the third shift (+2): $21 + 2 = 23$. The 23rd letter is W.

Combining these results, "CPU" is coded as "ENW".

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