Aspire Faculty ID #16246 · Topic: NIMCET 2011 · Just now
NIMCET 2011

B could be placed for any of the following places in the order of presenters EXCEPT

Solution

Since B must be immediately before C (i.e., B C), and 6 positions exist:

Possible B positions:

If B = 1 → C = 2 ✔

If B = 2 → C = 3 ✔

If B = 3 → C = 4 ✔

If B = 4 → C = 5 ✔

If B = 5 → C = 6 ✔

But B cannot be 6, because C would require position 7 (which doesn't exist).

Hence all positions 1–5 are possible except 6.

But in options only fifth is suspicious — but we saw B = 5 → C = 6 (valid).
We re-check question:
It asks EXCEPT → which is not allowed.

Given options:

(1) second ✔ allowed
(2) third ✔ allowed
(3) fourth ✔ allowed
(4) fifth ✔ allowed

But wait… rule says:
D must be 1st or 6th.

If D = 6th → C cannot be 6th → So B = 5 becomes impossible (because that forces C = 6).

Thus B = 5 is not always possible.

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