Sequences & Series
Combined Progressions
Grade 11
Question:
<p>If the (<i>m</i> + 1)<sup>th</sup>, (<i>n</i> + 1)<sup>th</sup> and (<i>r</i> + 1)<sup>th</sup> terms of an A.P. are in G.P. and <i>m</i>, <i>n</i>, <i>r</i> are in H.P., then the ratio of the common difference to the first term in the A.P. is equal to</p>
<p>(A) [Option A not provided]</p>
<p>(B) [Option B not provided]</p>
<p>(C) [Option C not provided]</p>
<p>(D) [Option D not provided]</p>
Step-by-Step Solution
Key Concept: Use the condition that certain terms of an A.P. are in G.P. combined with the H.P. relationship between indices.
<p>Solution not provided in source text.</p>
Correct Answer: Unknown