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Under which condition is a/c < b/c correct, if a < b?

Answer and explanation

Correct answer: c > 0

The governing order rule is that division by a positive number preserves the direction of an inequality, whereas division by a negative number reverses it. Since a < b, dividing both sides by c gives a/c < b/c only when c is positive. If c < 0, the correct result would be a/c > b/c. If c = 0, the fractions are undefined, so c = 0 is not allowed. Therefore option A, c > 0, is the only correct condition. Option D is also invalid because it includes negative values, which reverse the inequality, and zero, where division is impossible.

Related tags

Linear-InequalitiesDivision-PropertyPositive-DenominatorIntroduction To InequalitiesLinear InequalitiesMathematicsClass 11 Mcq

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