Exams › IBPS PO › Reasoning
How many pairs of letters in 'INVESTIGATION' have the same number of letters between them in the word as between them in the English alphabet?
- One
- More than four
- Three
- Four
Correct answer: More than four
Solution
Checking all pairs: (E,N): |pos13-pos4|=9, |E-N|=|5-14|=9 ✓; (S,T): |pos6-pos5|=1, |19-20|=1 ✓; (O,N): |pos13-pos12|=1, |15-14|=1 ✓; (N,I): |pos7-pos2|=5, |14-9|=5 ✓; (I,A): |pos9-pos1|=8, |1-9|=8 ✓. Total=5 pairs → More than four.
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