असमानता \(7\leq 2x+1<15\) का हल कौन सा है?

What is the solution of \(7\leq 2x+1<15\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Subtracting (1) throughout gives \(6\leq 2x<14\), then dividing by (2) gives \(3\leq x<7\). Work on both bounds together.

Step 2

Why this answer is correct

The correct answer is A. \(3\leq x<7\). Subtracting (1) throughout gives \(6\leq 2x<14\), then dividing by (2) gives \(3\leq x<7\). Work on both bounds together.

Step 3

Exam Tip

पूरे संयुक्त असमानता से (1) घटाकर \(6\leq 2x<14\) और फिर (2) से भाग देकर \(3\leq x<7\) मिलता है। दोनों सीमाओं पर साथ काम करें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

असमानता \(7\leq 2x+1<15\) का हल कौन सा है? / What is the solution of \(7\leq 2x+1<15\)?

Correct Answer: A. \(3\leq x<7\). Explanation: पूरे संयुक्त असमानता से (1) घटाकर \(6\leq 2x<14\) और फिर (2) से भाग देकर \(3\leq x<7\) मिलता है। दोनों सीमाओं पर साथ काम करें। / Subtracting (1) throughout gives \(6\leq 2x<14\), then dividing by (2) gives \(3\leq x<7\). Work on both bounds together.

Which concept should I revise for this Mathematics MCQ?

Subtracting (1) throughout gives \(6\leq 2x<14\), then dividing by (2) gives \(3\leq x<7\). Work on both bounds together.

What exam hint can help solve this Mathematics question?

पूरे संयुक्त असमानता से (1) घटाकर \(6\leq 2x<14\) और फिर (2) से भाग देकर \(3\leq x<7\) मिलता है। दोनों सीमाओं पर साथ काम करें।