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Class 9MathematicsSequences and ProgressionsArithmetic ProgressionEasy
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If (12,,x,,30) is an arithmetic progression, what is the value of (x)?

Answer and explanation

Correct answer: (21)

The middle term is the average of (12) and (30), so (x=\frac{12+30}{2}=21). In exams, take the average for the middle term in three-term progressions.

Related tags

SequencesProgressionsArithmetic-ProgressionClass-9EasyArithmetic ProgressionSequences And ProgressionsMathematics
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