If we form a four-letter meaningful word with 1st, 3rd, 5th, and 9th letters from the left end of the word ‘’INVENTORY” (using one letter once) , then what would be the 2nd letter of that meaningful word? If no meaningful word is formed, then mark the answer as X. If more than one meaningful word is formed then, mark the answer as Z.

The correct option is X.

Step 1: Identify the given word and extract the specified letters.

The given word is INVENTORY.

Let's count the positions of the letters from the left end:

1st letter = I
2nd letter = N
3rd letter = V
4th letter = E
5th letter = N
6th letter = T
7th letter = O
8th letter = R
9th letter = Y

The letters to be used (1st, 3rd, 5th, and 9th) are: I, V, N, Y.

Step 2: Check for meaningful English words.

Using the letters I, V, N, Y exactly once each, we test all possible four-letter combinations:

Possible combinations include: IVNY, IVYN, INVY, INYV, IYVN, IYNV, VINY, VIYN, VNIY, VNYI, VYIN, VYNI, NIVY, NIYV, NVIY, NVYI, NYIV, NYVI, YIVN, YINV, YVIN, YVNI, YNIV, YNVI.

None of these arrangements form a standard four-letter meaningful word in English.

Step 3: Determine the final output based on the instructions.

According to the instructions, if no meaningful word can be formed using these four letters, we must mark the answer as X.

Therefore, the answer is X.