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A student needs at least 60 marks to pass. If each correct answer earns 4 marks and the number of correct answers is \(x\), what is the minimum value of \(x\)?

Answer and explanation

Correct answer: 15

The passing condition is \(4x\ge 60\). Dividing both sides by 4 gives \(x\ge 15\), so the minimum number of correct answers is 15. With 14 correct answers, the student would score only 56 marks, which is below 60. In exams, remember that ‘at least’ indicates \(\ge\).

Related tags

Word ProblemMinimum ValueLinear InequalityOne VariableAlgebraic Solution Of Linear Inequalities In One VariableLinear InequalitiesMathematicsClass 11 Mcq

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