यदि समानांतर श्रेढ़ी में \(a_4=18\) और (d=3) है, तो \(a_9\) क्या होगा?

If an arithmetic progression has \(a_4=18\) and (d=3), what will be \(a_9\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

D. (33)

Step 1

Concept

From \(a_4\) to \(a_9\), there are (5) gaps, so (a_9=18+5(3)=33). Moving forward from a nearby term is a quick method.

Step 2

Why this answer is correct

The correct answer is D. (33). From \(a_4\) to \(a_9\), there are (5) gaps, so (a_9=18+5(3)=33). Moving forward from a nearby term is a quick method.

Step 3

Exam Tip

\(a_9\) तक \(a_4\) से (5) अंतर आगे हैं, इसलिए (a_9=18+5(3)=33)। पास के पद से आगे बढ़ना तेज तरीका है।

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Mathematics Answer, Explanation and Revision Hints

यदि समानांतर श्रेढ़ी में \(a_4=18\) और (d=3) है, तो \(a_9\) क्या होगा? / If an arithmetic progression has \(a_4=18\) and (d=3), what will be \(a_9\)?

Correct Answer: D. (33). Explanation: \(a_9\) तक \(a_4\) से (5) अंतर आगे हैं, इसलिए (a_9=18+5(3)=33)। पास के पद से आगे बढ़ना तेज तरीका है। / From \(a_4\) to \(a_9\), there are (5) gaps, so (a_9=18+5(3)=33). Moving forward from a nearby term is a quick method.

Which concept should I revise for this Mathematics MCQ?

From \(a_4\) to \(a_9\), there are (5) gaps, so (a_9=18+5(3)=33). Moving forward from a nearby term is a quick method.

What exam hint can help solve this Mathematics question?

\(a_9\) तक \(a_4\) से (5) अंतर आगे हैं, इसलिए (a_9=18+5(3)=33)। पास के पद से आगे बढ़ना तेज तरीका है।