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
Correct Answer

A. \(3<x\leq 7\)

Step 1

Concept

Dividing by (4) gives \(3<x\leq 7\). Dividing by a positive number does not change the signs.

Step 2

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.

Step 3

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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FAQs

Mathematics Answer, Explanation and Revision Hints

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?

Correct Answer: A. \(3<x\leq 7\). Explanation: (4) से भाग देने पर \(3<x\leq 7\) मिलता है। धनात्मक संख्या से भाग देने पर चिन्ह नहीं बदलता। / Dividing by (4) gives \(3<x\leq 7\). Dividing by a positive number does not change the signs.

Which concept should I revise for this Mathematics MCQ?

Dividing by (4) gives \(3<x\leq 7\). Dividing by a positive number does not change the signs.

What exam hint can help solve this Mathematics question?

(4) से भाग देने पर \(3<x\leq 7\) मिलता है। धनात्मक संख्या से भाग देने पर चिन्ह नहीं बदलता।