Question
If in the word "TEACHER", all the consonants are changed
to the 3rd preceding and all the vowels are changed to the immediately preceding letter as per the English alphabetical series from left to right, and all the letters are then arranged as per the English alphabetical series from right to left, then the position of how many letters remains unchanged?Solution
Original:Â Â TÂ E A C H E R Changed: QÂ D Z Z E D O Re-arranged: Z Z Q O E D D Positions unchanged: None
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