यदि \(a_n=4\cdot5^{n-1}\) है, तो \(a_4+a_5\) का मान क्या है?

If \(a_n=4\cdot5^{n-1}\), what is the value of \(a_4+a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (3000)

Step 1

Concept

\(a_4=500\) and \(a_5=2500\), so the sum is (3000). In exams, find both terms separately and add.

Step 2

Why this answer is correct

The correct answer is B. (3000). \(a_4=500\) and \(a_5=2500\), so the sum is (3000). In exams, find both terms separately and add.

Step 3

Exam Tip

\(a_4=500\) और \(a_5=2500\), इसलिए योग (3000) है। परीक्षा में दोनों पद अलग निकालकर जोड़ें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=4\cdot5^{n-1}\) है, तो \(a_4+a_5\) का मान क्या है? / If \(a_n=4\cdot5^{n-1}\), what is the value of \(a_4+a_5\)?

Correct Answer: B. (3000). Explanation: \(a_4=500\) और \(a_5=2500\), इसलिए योग (3000) है। परीक्षा में दोनों पद अलग निकालकर जोड़ें। / \(a_4=500\) and \(a_5=2500\), so the sum is (3000). In exams, find both terms separately and add.

Which concept should I revise for this Mathematics MCQ?

\(a_4=500\) and \(a_5=2500\), so the sum is (3000). In exams, find both terms separately and add.

What exam hint can help solve this Mathematics question?

\(a_4=500\) और \(a_5=2500\), इसलिए योग (3000) है। परीक्षा में दोनों पद अलग निकालकर जोड़ें।