Question:medium

Main statement: Only if the teaching standard is destroyed, will examination result be poor.
  1. Examination result is poor.
  2. Teaching standard is not destroyed.
  3. Examination result is not poor.
  4. Teaching standard is destroyed.
The ordered pair of statements is:
This questions has a main statement followed by four statements: 1, 2, 3, 4. Choose the ordered pair of statements where the first statement implies the second, and the two statements are logically consistent with the main statement.

Updated On: Jul 15, 2026
  • 2, 3
  • 2, 4
  • 1, 3
  • 1, 2
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The Correct Option is A

Approach Solution - 1

The main statement says a poor exam result can only occur if the teaching standard has been destroyed, in short, poor result requires a destroyed standard.

Flipping this around the only logically safe way, if the standard was not destroyed, a poor result could not have occurred either, giving 'standard not destroyed' leading to 'result not poor', exactly statements 2 and 3 in that order.

Every other pairing either contradicts itself outright, poor implying not poor, or not-destroyed implying destroyed, or reverses the direction of the original conditional.

Therefore, the correct answer is 2, 3.

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Approach Solution -2

"Only if the teaching standard is destroyed, will examination result be poor" means a destroyed teaching standard is a necessary condition for a poor result, without it being destroyed, a poor result simply cannot happen.

  1. 2, 3: If the teaching standard was never destroyed, then, since destruction of the standard is required before a poor result can occur at all, the result cannot be poor either. This pairing follows directly from what "only if" guarantees.
  2. 2, 4: Saying the standard is not destroyed and then concluding it is destroyed contradicts itself in the same breath, this cannot be a valid pair.
  3. 1, 3: Saying the result is poor and then concluding the result is not poor is likewise a direct contradiction.
  4. 1, 2: A poor result tells us the necessary condition, a destroyed standard, must have been met, it does not tell us the standard was left intact, so concluding "not destroyed" from a poor result reverses the actual relationship.

Since a destroyed teaching standard is required before a poor result can occur, an intact standard guarantees the result was not poor, exactly the pairing of statements 2 and 3.

Therefore, the correct answer is 2, 3.

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