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If a > b and c > 0, which statement is always true?

Answer and explanation

Correct answer: ac > bc

The governing rule is that multiplication or division by a positive number preserves the direction of an inequality. From a > b and c > 0, multiplying every part by c gives ac > bc, so option B is always true. The sign would reverse only if c were negative; that condition is explicitly excluded. Option A has the wrong direction. Dividing by the positive number c also preserves the direction, so option C is false because it uses < rather than >. Adding c to both sides would give a + c > b + c, not option D. Thus the positive-multiplier property identifies B without needing particular numerical values for a, b, or c.

Related tags

Linear InequalitiesPositive MultiplicationInequality PropertiesClass 11 MathematicsIntroduction To InequalitiesMathematicsClass 11 Mcq

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