UGC NET Questions (Paper – 1)

Statements A, B and C correctly describe mixture setups, the alligation shortcut and the fact that equal quantities lead to an average percentage. Statement E is true because both algebraic and alligation approaches are valid for such problems. Statement D is false since in an alligation diagram the differences from the mean are written on the opposite side to the corresponding values, forming the cross pattern. Therefore, A, B, C and E only are correct.

Option A:
Option A is incomplete because it omits E and hence does not reflect the flexibility of solving mixture problems either by equations or by alligation.

Option B:
Option B is correct as it gathers all the true statements and excludes D, which misdescribes the alligation diagram placement rule.

Option C:
Option C is wrong because it includes D (false), even though it contains some true statements.

Option D:
Option D is wrong because it includes D (false) and omits A, losing the general description of mixture problems.