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In a class, the number of students (n) is at least (20) and at most (45). Which inequality is correct?

Answer and explanation

Correct answer: (20\le n\le 45)

At least (20) means (n\ge 20), and at most (45) means (n\le 45). Combining both gives (20\le n\le 45).

Related tags

Linear InequalitiesWord ProblemCompound InequalityIntroduction To InequalitiesMathematicsClass 11 Mcq

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