Hard Mathematics Chapter 1: Real Numbers Class 10 Level 15

यदि (r) एक अशून्य परिमेय संख्या है और (x) अपरिमेय संख्या है, तो \(\frac{x}{r}\) के बारे में सही कथन कौन-सा है?

If (r) is a non-zero rational number and (x) is an irrational number, which statement about \(\frac{x}{r}\) is correct?

Explanation opens after your attempt
Correct Answer

B. यह हमेशा अपरिमेय हैIt is always irrational

Step 1

Concept

Dividing by a non-zero rational number is the same as multiplying by its reciprocal.

Step 2

Why this answer is correct

\(\frac{1}{r}\) is also a non-zero rational number, so \(\frac{x}{r}\) remains irrational.

Step 3

Exam Tip

In division questions, always check that the denominator is not zero. चरण 1: अशून्य परिमेय संख्या से भाग देना उसी के व्युत्क्रम से गुणा करने जैसा है। चरण 2: \(\frac{1}{r}\) भी अशून्य परिमेय है, इसलिए \(\frac{x}{r}\) अपरिमेय रहेगा। चरण 3: भाग वाले प्रश्न में हर के शून्य न होने की शर्त जरूर देखें।

FAQs

Mathematics Question FAQs

What is the correct answer to this Mathematics MCQ?

The correct answer is B. यह हमेशा अपरिमेय है / It is always irrational.

Where can I practice more Mathematics questions?

Open the subject page or level quiz links on this page to practice more active Mathematics MCQs with answers and explanations.

Related Mathematics Questions

Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.