एक समान्तर श्रेणी में \(a_{10}=25\) और \(a_{30}=-135\) है। \(a_{55}\) क्या होगा?

In an AP, \(a_{10}=25\) and \(a_{30}=-135\). What is \(a_{55}\)?

Explanation opens after your attempt
Correct Answer

B. (-335)

Step 1

Concept

\(d=\frac{-135-25}{30-10}=-8\). (a_{55}=-135+25(-8)=-335).

Step 2

Why this answer is correct

The correct answer is B. (-335). \(d=\frac{-135-25}{30-10}=-8\). (a_{55}=-135+25(-8)=-335).

Step 3

Exam Tip

\(d=\frac{-135-25}{30-10}=-8\)। (a_{55}=-135+25(-8)=-335)।

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एक समान्तर श्रेणी में \(a_{10}=25\) और \(a_{30}=-135\) है। \(a_{55}\) क्या होगा? / In an AP, \(a_{10}=25\) and \(a_{30}=-135\). What is \(a_{55}\)?

Correct Answer: B. (-335). Explanation: \(d=\frac{-135-25}{30-10}=-8\)। (a_{55}=-135+25(-8)=-335)। / \(d=\frac{-135-25}{30-10}=-8\). (a_{55}=-135+25(-8)=-335).

Which concept should I revise for this Mathematics MCQ?

\(d=\frac{-135-25}{30-10}=-8\). (a_{55}=-135+25(-8)=-335).

What exam hint can help solve this Mathematics question?

\(d=\frac{-135-25}{30-10}=-8\)। (a_{55}=-135+25(-8)=-335)।