गुणोत्तर श्रेणी \(3,6,12,24,\ldots\) का बारहवाँ पद क्या है?

What is the twelfth term of the geometric progression \(3,6,12,24,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. (6144)

Step 1

Concept

Here (a=3) and (r=2) so \(a_{12}=3\cdot2^{11}=6144\). In exams use \(a_n=ar^{n-1}\).

Step 2

Why this answer is correct

The correct answer is B. (6144). Here (a=3) and (r=2) so \(a_{12}=3\cdot2^{11}=6144\). In exams use \(a_n=ar^{n-1}\).

Step 3

Exam Tip

यहाँ (a=3) और (r=2) है इसलिए \(a_{12}=3\cdot2^{11}=6144\) है। परीक्षा में \(a_n=ar^{n-1}\) लगाएँ।

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Mathematics Answer, Explanation and Revision Hints

गुणोत्तर श्रेणी \(3,6,12,24,\ldots\) का बारहवाँ पद क्या है? / What is the twelfth term of the geometric progression \(3,6,12,24,\ldots\)?

Correct Answer: B. (6144). Explanation: यहाँ (a=3) और (r=2) है इसलिए \(a_{12}=3\cdot2^{11}=6144\) है। परीक्षा में \(a_n=ar^{n-1}\) लगाएँ। / Here (a=3) and (r=2) so \(a_{12}=3\cdot2^{11}=6144\). In exams use \(a_n=ar^{n-1}\).

Which concept should I revise for this Mathematics MCQ?

Here (a=3) and (r=2) so \(a_{12}=3\cdot2^{11}=6144\). In exams use \(a_n=ar^{n-1}\).

What exam hint can help solve this Mathematics question?

यहाँ (a=3) और (r=2) है इसलिए \(a_{12}=3\cdot2^{11}=6144\) है। परीक्षा में \(a_n=ar^{n-1}\) लगाएँ।