यदि \(x\in\mathbb{R}\) और \(12<4x\leq 28\) है तो सही हल कौन सा है?
If \(x\in\mathbb{R}\) and \(12<4x\leq 28\), which solution is correct?
Explanation opens after your attempt
A. \(3<x\leq 7\)
Concept
Dividing by (4) gives \(3<x\leq 7\). Dividing by a positive number does not change the signs.
Why this answer is correct
The correct answer is A. \(3<x\leq 7\). Dividing by (4) gives \(3<x\leq 7\). Dividing by a positive number does not change the signs.
Exam Tip
(4) से भाग देने पर \(3<x\leq 7\) मिलता है। धनात्मक संख्या से भाग देने पर चिन्ह नहीं बदलता।
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