UGC NET Questions (Paper – 1)

Statements A, B, C and E are correct, whereas D and F are false. Diagrams and symbolic notations are widely recommended for arrangement problems because they externalise information and constraints. When a trial placement yields a contradiction, it signals that assumptions must be changed, and elimination is a powerful strategy when several possibilities exist. D is wrong because some puzzles may have multiple valid configurations, and F is wrong because disorganised reading usually makes problems harder, not easier. Hence A, B, C and E only is the correct combination.

Option A:
Option A is correct because it collects the main effective strategies for arrangement problems and excludes unrealistic claims about uniqueness and the effect of random reading. It reflects both reasoning principles and practical exam techniques. Therefore this option best represents the correct statements.

Option B:
Option B is incomplete since it omits E, the explicit mention of elimination as a useful tool. While A, B and C describe diagramming and revision, they leave out an important problem-solving technique. Thus A, B and C only cannot be accepted.

Option C:
Option C is wrong because it includes F, which wrongly asserts that random order reading has no impact on difficulty. In fact, organising conditions often simplifies reasoning. This option also omits A, removing an important recommendation about drawing diagrams.

Option D:
Option D is incorrect because it accepts F and omits B. Without B, the benefit of formalising clues is lost, and including F contradicts widely shared problem-solving advice. Therefore A, C, E and F only is not a valid answer.