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If (a_n=\frac{3n}{n+4}), at which term will (a_n=\frac{9}{7})?
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Answer and explanation
Correct answer: (6)th
From (\frac{3n}{n+4}=\frac{9}{7}), (21n=9n+36), so (n=3). None of the given options is correct.
Frequently asked questions
What is the correct answer to this question?
(6)th
Why is this the correct answer?
From (\frac{3n}{n+4}=\frac{9}{7}), (21n=9n+36), so (n=3). None of the given options is correct.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: Explicit or general rule.
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