Arithmetic Progression
The arithmetic mean of 5 and 15 is
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About This Question
- Subject
- mathematics
- Chapter
- sequence and series
- Topic
- arithmetic progression
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
10
- 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=2a+b.
- Calculation:
- M=25+15=220=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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