समान्तर श्रेणी \(8,14,20,\ldots\) में \(a_n=74\) है। (n) का मान ज्ञात कीजिए।

In the AP \(8,14,20,\ldots\), \(a_n=74\). Find the value of (n).

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Correct Answer

B. (12)

Step 1

Concept

From (74=8+(n-1)6), (66=6(n-1)), so (n=12). The term number must always be an integer.

Step 2

Why this answer is correct

The correct answer is B. (12). From (74=8+(n-1)6), (66=6(n-1)), so (n=12). The term number must always be an integer.

Step 3

Exam Tip

(74=8+(n-1)6) से (66=6(n-1)), इसलिए (n=12)। उत्तर में पद संख्या हमेशा पूर्णांक होनी चाहिए।

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समान्तर श्रेणी \(8,14,20,\ldots\) में \(a_n=74\) है। (n) का मान ज्ञात कीजिए। / In the AP \(8,14,20,\ldots\), \(a_n=74\). Find the value of (n).

Correct Answer: B. (12). Explanation: (74=8+(n-1)6) से (66=6(n-1)), इसलिए (n=12)। उत्तर में पद संख्या हमेशा पूर्णांक होनी चाहिए। / From (74=8+(n-1)6), (66=6(n-1)), so (n=12). The term number must always be an integer.

Which concept should I revise for this Mathematics MCQ?

From (74=8+(n-1)6), (66=6(n-1)), so (n=12). The term number must always be an integer.

What exam hint can help solve this Mathematics question?

(74=8+(n-1)6) से (66=6(n-1)), इसलिए (n=12)। उत्तर में पद संख्या हमेशा पूर्णांक होनी चाहिए।