समांतर श्रेणी \(31,25,19,13,\ldots\) में पहला ऋणात्मक पद कौन-सा है?
What is the first negative term in the arithmetic progression \(31,25,19,13,\ldots\)?
Explanation opens after your attempt
Correct Answer
C. (8)वाँ(8)th
Concept
The terms are \(31,25,19,13,7,1,-5,\ldots\), so the first negative term is the (7)th. Among the options, the (7)th is correct.
Why this answer is correct
The correct answer is C. (8)वाँ / (8)th. The terms are \(31,25,19,13,7,1,-5,\ldots\), so the first negative term is the (7)th. Among the options, the (7)th is correct.
Exam Tip
पद \(31,25,19,13,7,1,-5,\ldots\) हैं, इसलिए पहला ऋणात्मक पद (7)वाँ है। दिए विकल्पों में (7)वाँ सही है।
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