In a word "MODELLING", if all letters are arranged in the alphabetical order, and then the vowels are changed to the previous letter and the consonants are changed to the next letter as per the English alphabetical series, then how many letters do not repeat more than once?

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SBI PO Prelims Memory Based Paper (Held on:24 June 2018)
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  1. Three
  2. Four
  3. None
  4. One
  5. Five

Answer (Detailed Solution Below)

Option 1 : Three
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Detailed Solution

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Given Word: MODELLING

After arranging all letters of the given word in alphabetical order: 

D E G I L L M N O

After changing all vowels to the previous letter and all consonants to the next letter as per the English alphabetical series: 

E D H H M M N O N

Hence, only three letters E, D, and O are not repeating more than once in the above arrangement.

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