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

If \(a_n=4\cdot5^{n-1}\), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (500)

Step 1

Concept

\(a_4=4\cdot5^3=500\). In a geometric rule, the exponent is (n-1).

Step 2

Why this answer is correct

The correct answer is C. (500). \(a_4=4\cdot5^3=500\). In a geometric rule, the exponent is (n-1).

Step 3

Exam Tip

\(a_4=4\cdot5^3=500\)। गुणोत्तर नियम में घात (n-1) होती है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=4\cdot5^{n-1}\) है, तो \(a_4\) क्या होगा? / If \(a_n=4\cdot5^{n-1}\), what is \(a_4\)?

Correct Answer: C. (500). Explanation: \(a_4=4\cdot5^3=500\)। गुणोत्तर नियम में घात (n-1) होती है। / \(a_4=4\cdot5^3=500\). In a geometric rule, the exponent is (n-1).

Which concept should I revise for this Mathematics MCQ?

\(a_4=4\cdot5^3=500\). In a geometric rule, the exponent is (n-1).

What exam hint can help solve this Mathematics question?

\(a_4=4\cdot5^3=500\)। गुणोत्तर नियम में घात (n-1) होती है।