In each of the following questions, a specific pattern such as reversal or rearrangement has been applied to the first word to get the second. Apply the same pattern to the third word and find the correct answer from the given options. GNIDAER : READING :: NOITULOS : ?
- (a)SOLUTION
- (b)SOLUNOIT
- (c)NOILOSUT
- (d)POLLUTION
Answer
Why
Correct — A. Rule: write the word backwards.
GNIDAER read from right to left is READING, so the second word is the first word reversed. Nothing is shifted and no letter is added.
NOITULOS read from right to left:
S-O-L-U-T-I-O-N = SOLUTION, option (a).
Why the others are wrong
- (b)SOLUNOIT — SOLUNOIT is SOLU, the last four letters reversed, followed by NOIT left unreversed. A full reversal must end in N, the letter that opens NOITULOS.
- (c)NOILOSUT — NOILOSUT still opens with NOI, the first three letters of NOITULOS. Reversal sends them to the end, just as the G that opens GNIDAER closes READING.
- (d)POLLUTION — POLLUTION has nine letters: it adds a P and a second L and drops the S. Reversal only reorders the eight letters of NOITULOS and never adds or removes one.
Concept
A rearrangement analogy asks which operation turns the first word into the second. Reversal is the simplest: the last letter becomes the first, the second-last becomes the second, and so on.
Test it with the end letters. G opens GNIDAER and closes READING, so N, which opens NOITULOS, must close the answer.
That check removes SOLUNOIT and NOILOSUT at once. A letter count removes POLLUTION, because the answer must use the same eight letters as the coded word.
The instruction itself names both possibilities, "reversal or rearrangement". Test the full reversal first: it takes seconds, and a swap pattern is worth hunting for only if reversal fails.
Key facts
- GNIDAER reversed is READING.
- NOITULOS reversed is SOLUTION.
- Under reversal, the first letter of the coded word becomes the last letter of the answer.
Study next
Common traps
- Swapping the two halves but reversing only one of them, which produces SOLUNOIT.
- Picking a real English word that looks close, such as POLLUTION, without checking its letters.
A letter rearrangement is also set at 10 Sep 2024, 16:00, Reasoning Q.4, where SWEET → WSETE swaps letters 1 and 2 and letters 4 and 5 instead of reversing the word.
Related PYQs
No directly related past PYQ was found.