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Class 9 Mathematics Sequences and Progressions Arithmetic ProgressionEasy

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If (5,,x,,15) is an arithmetic progression, what is the value of (x)?

Answer and explanation

Correct answer: (10)

The middle term is the average of (5) and (15), so (x=\frac{5+15}{2}=10). In exams, take the average for the middle term in three-term progressions.

Related tags

Sequences Progressions Arithmetic-Progression Class-9 Easy Arithmetic Progression Sequences And Progressions Mathematics

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