How many four-letter meaningful English words can be formed with the help of the 1st, 3rd, 5th, and 7th letters of “TITANIUM” such that no letter is repeated?

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RRB PO Prelims Memory Based Paper (Held On: 20 August 2022 Shift 4)
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  1. One
  2. Two
  3. Three
  4. Four
  5. None of these

Answer (Detailed Solution Below)

Option 5 : None of these
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Detailed Solution

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The 1st, 3rd, 5th, and 7th letters of the word “TITANIUM”

1st 2nd 3rd 4th 5th 6th 7th 8th
T I T A N I U M

 

1st letter is T, 3nd Letter is T, 5rd letter is N and 7th letter is U. We can not form any letter with the help of TTNU.

Hence, None of these is the answer.

 

We have to use all the four-letter to form the meaning full word. "NUT" will not be considered as it has only 3 letters

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