Arithmetic Progression

Easymathematics

The arithmetic mean of 5 and 15 is

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Subject: mathematics
Chapter: sequence and series
Topic: arithmetic progression
Difficulty: Easy
Year: 2025

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Correct Answer:

Definition of AM: The arithmetic mean of two numbers $a$ and $b$ is the number $M$ such that $a, M, b$ form an AP.
Formula: $M = \frac{a + b}{2}$ .
Calculation:
- $M = \frac{5 + 15}{2} = \frac{20}{2} = 10$ .
Result: The AM is 10.

This easy difficulty mathematics question is from the chapter sequence and series, covering the topic of arithmetic progression. It appeared in the 2025 exam.

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Arithmetic Progression

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