किस समांतर श्रेणी में \(a_4=19\) और \(a_8=47\) है?
Which arithmetic progression has \(a_4=19\) and \(a_8=47\)?
Explanation opens after your attempt
B. \(2,9,16,23,\ldots\)
Concept
In \(2,9,16,23,\ldots\), \(a_4\) is not (19); the correct sequence would be \(-2,5,12,19,\ldots\). None of the given options is correct.
Why this answer is correct
The correct answer is B. \(2,9,16,23,\ldots\). In \(2,9,16,23,\ldots\), \(a_4\) is not (19); the correct sequence would be \(-2,5,12,19,\ldots\). None of the given options is correct.
Exam Tip
\(2,9,16,23,\ldots\) में \(a_4=23\) नहीं आता; सही श्रेणी \( -2,5,12,19,\ldots\) होगी। दिए विकल्पों में कोई सही नहीं है।
Login to save your score, XP, coins and progress.
