🧩 Logical Puzzle
Q.3. A RAW agent code named Chandrakanta emailed a code word to his head office. They are "AIS EUC RAO REI COS". But four of these five words are fake and only one contains the information. He also mailed a sentence as a clue - if I tell you any one character of the code word, you would be able to tell the number of vowels in the code word. Can you tell what the code word is?
💡 Answer:
The code word is RIE.
If you were told any one character of COS, then you would not be able to determine whether the number of vowels is one or two. e.g. if you were told S, there are two words with S – AIS with 2 vowels and COS with 1 vowel. So you would not be able to say the number of vowels.
Same arguments can be given for characters O and C.
Hence, the word with any one of M, O or C is not a code word i.e. AIS, EUC, RAO and COS are not the code word. Thus, REI is the code word.
R : two words - REI and RAO, both with 2 vowels
E : two words - REI and EUC, both with 2 vowels.
I : two words - REI and AIS, both with 2 vowels