Question
 In the word ‘FRUSTRATED’, first all the letters
are written in an alphabetical order form, then remove all the vowels from the arrangement then how many such pair/pairs of letters are there, each of which have as many letters between them in the word (forward direction) as they have between them in the English alphabetical series?Solution
There are three pairs i.e. RS, ST and RTÂ
The word -
F R U S T R A T E D
  A D E F R R S T T U
  D F R R S T T
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