यदि \(x\in\mathbb{R}\) और \(2\leq \frac{x+1}{3}<5\) है तो (x) का अंतराल कौन सा है?
If \(x\in\mathbb{R}\) and \(2\leq \frac{x+1}{3}<5\), which interval is for (x)?
Explanation opens after your attempt
A. ([5,14))
Concept
Multiplying by (3) gives \(6\leq x+1<15\), hence \(5\leq x<14\). Removing a positive denominator does not change the signs.
Why this answer is correct
The correct answer is A. ([5,14)). Multiplying by (3) gives \(6\leq x+1<15\), hence \(5\leq x<14\). Removing a positive denominator does not change the signs.
Exam Tip
(3) से गुणा करने पर \(6\leq x+1<15\) और \(5\leq x<14\) मिलता है। धनात्मक हर हटाने पर चिन्ह नहीं बदलते।
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