यदि गुणोत्तर श्रेढ़ी में \(a_4=80\) और (r=2) है, तो \(a_7\) क्या होगा?

If a geometric progression has \(a_4=80\) and (r=2), what will be \(a_7\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (640)

Step 1

Concept

\(a_7=a_4r^3=80\cdot2^3=640\). Use the correct power of the ratio when moving forward from a given term.

Step 2

Why this answer is correct

The correct answer is C. (640). \(a_7=a_4r^3=80\cdot2^3=640\). Use the correct power of the ratio when moving forward from a given term.

Step 3

Exam Tip

\(a_7=a_4r^3=80\cdot2^3=640\)। दिए पद से आगे जाने में अनुपात की सही घात लगाएं।

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यदि गुणोत्तर श्रेढ़ी में \(a_4=80\) और (r=2) है, तो \(a_7\) क्या होगा? / If a geometric progression has \(a_4=80\) and (r=2), what will be \(a_7\)?

Correct Answer: C. (640). Explanation: \(a_7=a_4r^3=80\cdot2^3=640\)। दिए पद से आगे जाने में अनुपात की सही घात लगाएं। / \(a_7=a_4r^3=80\cdot2^3=640\). Use the correct power of the ratio when moving forward from a given term.

Which concept should I revise for this Mathematics MCQ?

\(a_7=a_4r^3=80\cdot2^3=640\). Use the correct power of the ratio when moving forward from a given term.

What exam hint can help solve this Mathematics question?

\(a_7=a_4r^3=80\cdot2^3=640\)। दिए पद से आगे जाने में अनुपात की सही घात लगाएं।