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A student needs at least (75) marks after adding a bonus of (5) marks. If the original marks are (x), what is the minimum value of (x)?

Answer and explanation

Correct answer: 70

The condition is represented by \(x+5\geq 75\). Subtracting 5 from both sides gives \(x\geq 70\). Hence, the minimum original score is 70. Although 75 also satisfies the condition, it is not the minimum value. Exam tip: use \(\geq\) for the phrase “at least.”

Related tags

Linear InequalitiesOne VariableWord ProblemsMinimum ValueInequality SymbolsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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