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)?

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Correct Answer

B. (8)वाँ(8)th

Step 1

Concept

From (70+(n-1)(-8)=14), (n=8). The same \(a_n\) formula works in a decreasing progression.

Step 2

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.

Step 3

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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Mathematics Answer, Explanation and Revision Hints

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)?

Correct Answer: B. (8)वाँ / (8)th. Explanation: (70+(n-1)(-8)=14) से (n=8) मिलता है। घटती श्रेढ़ी में भी वही \(a_n\) सूत्र लगता है। / From (70+(n-1)(-8)=14), (n=8). The same \(a_n\) formula works in a decreasing progression.

Which concept should I revise for this Mathematics MCQ?

From (70+(n-1)(-8)=14), (n=8). The same \(a_n\) formula works in a decreasing progression.

What exam hint can help solve this Mathematics question?

(70+(n-1)(-8)=14) से (n=8) मिलता है। घटती श्रेढ़ी में भी वही \(a_n\) सूत्र लगता है।