Expert Mathematics Arithmetic Progressions (AP) Class 10 Level 66

यदि \(a_{30}=8a_{14}\) और \(a_{14}=51\) है, तो \(a_{46}\) क्या होगा?

If \(a_{30}=8a_{14}\) and \(a_{14}=51\), what is \(a_{46}\)?

Explanation opens after your attempt
Correct Answer

B. (765)

Step 1

Concept

\(a_{30}=408\), so (16d=357) and \(d=\frac{357}{16}\). \(a_{46}=408+16\cdot\frac{357}{16}=765\).

Step 2

Why this answer is correct

The correct answer is B. (765). \(a_{30}=408\), so (16d=357) and \(d=\frac{357}{16}\). \(a_{46}=408+16\cdot\frac{357}{16}=765\).

Step 3

Exam Tip

\(a_{30}=408\), इसलिए (16d=357) और \(d=\frac{357}{16}\)। \(a_{46}=408+16\cdot\frac{357}{16}=765\)।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_{30}=8a_{14}\) और \(a_{14}=51\) है, तो \(a_{46}\) क्या होगा? / If \(a_{30}=8a_{14}\) and \(a_{14}=51\), what is \(a_{46}\)?

Correct Answer: B. (765). Explanation: \(a_{30}=408\), इसलिए (16d=357) और \(d=\frac{357}{16}\)। \(a_{46}=408+16\cdot\frac{357}{16}=765\)। / \(a_{30}=408\), so (16d=357) and \(d=\frac{357}{16}\). \(a_{46}=408+16\cdot\frac{357}{16}=765\).

Which concept should I revise for this Mathematics MCQ?

\(a_{30}=408\), so (16d=357) and \(d=\frac{357}{16}\). \(a_{46}=408+16\cdot\frac{357}{16}=765\).

What exam hint can help solve this Mathematics question?

\(a_{30}=408\), इसलिए (16d=357) और \(d=\frac{357}{16}\)। \(a_{46}=408+16\cdot\frac{357}{16}=765\)।

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