Question:medium
If \( a+1, 2a+1, 4a-1 \) are in arithmetic progression, then the value of \( a \) is:
If \( a+1, 2a+1, 4a-1 \) are in arithmetic progression, then the value of \( a \) is:
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The "Arithmetic Mean" property (\( 2 \times \text{Middle} = \text{Sum of Ends} \)) is the most reliable way to solve for variables in an A.P. It avoids the extra step of calculating the common difference separately.
Updated On: May 1, 2026
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The Correct Option is B
Solution and Explanation
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