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Which of the following is the solution of the inequality \(\frac{x}{4}-1>2\)?

Answer and explanation

Correct answer: \(x>12\)

Adding 1 to both sides gives \(\frac{x}{4}>3\). Multiplying both sides by the positive number 4 yields \(x>12\), so option A is correct. Option C is incorrect because \(x=12\) gives equality, whereas the inequality requires a strict greater-than sign. Exam tip: Multiplication or division by a positive number does not reverse the inequality sign.

Related tags

Linear InequalitiesInequality SolvingClass 11 MathematicsStrict InequalitiesAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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