समानांतर श्रेढ़ी \(70,62,54,46,\ldots\) में (14) कौन-सा पद है?
In the arithmetic progression \(70,62,54,46,\ldots\), which term is (14)?
Explanation opens after your attempt
B. (8)वाँ(8)th
Concept
From (70+(n-1)(-8)=14), (n=8). The same \(a_n\) formula works in a decreasing progression.
Why this answer is correct
The correct answer is B. (8)वाँ / (8)th. From (70+(n-1)(-8)=14), (n=8). The same \(a_n\) formula works in a decreasing progression.
Exam Tip
(70+(n-1)(-8)=14) से (n=8) मिलता है। घटती श्रेढ़ी में भी वही \(a_n\) सूत्र लगता है।
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