Concept-wise Practice

rational-irrational-product MCQ Questions for Class 10

rational-irrational-product se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

3 questions tagged with rational-irrational-product.

Question 1/3 Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

कौन-सा विकल्प परिमेय संख्या और अपरिमेय संख्या का ऐसा गुणनफल दिखाता है जो अपरिमेय है?

Which option shows the product of a rational number and an irrational number that is irrational?

Explanation opens after your attempt
Correct Answer

B. \(6\times\sqrt{19}\)

Step 1

Concept

(6) is a non-zero rational number and \(\sqrt{19}\) is irrational.

Step 2

Why this answer is correct

\(6\sqrt{19}\) remains irrational.

Step 3

Exam Tip

Multiplication by zero is a special case, so focus on non-zero rational factors. चरण 1: (6) अशून्य परिमेय है और \(\sqrt{19}\) अपरिमेय है। चरण 2: \(6\sqrt{19}\) अपरिमेय रहेगा। चरण 3: शून्य से गुणा करने का मामला अलग है, इसलिए अशून्य परिमेय पर ध्यान दें।

Open Question Page
Ask Friends
Question 2/3 Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

कौन-सा विकल्प परिमेय संख्या और अपरिमेय संख्या का ऐसा गुणनफल दिखाता है जो अपरिमेय है?

Which option shows the product of a rational number and an irrational number that is irrational?

Explanation opens after your attempt
Correct Answer

B. \(4\times\sqrt{13}\)

Step 1

Concept

(4) is a non-zero rational number and \(\sqrt{13}\) is irrational.

Step 2

Why this answer is correct

\(4\sqrt{13}\) remains irrational.

Step 3

Exam Tip

Multiplication by zero is a special case, so focus on non-zero rational factors. चरण 1: (4) अशून्य परिमेय है और \(\sqrt{13}\) अपरिमेय है। चरण 2: \(4\sqrt{13}\) अपरिमेय रहेगा। चरण 3: शून्य से गुणा करने का मामला अलग है, इसलिए अशून्य परिमेय पर ध्यान दें।

Open Question Page
Ask Friends
Question 3/3 Medium Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

कौन-सा विकल्प परिमेय संख्या और अपरिमेय संख्या का गुणनफल दिखाता है जो अपरिमेय है?

Which option shows the product of a rational number and an irrational number that is irrational?

Explanation opens after your attempt
Correct Answer

B. \(3\times\sqrt{7}\)

Step 1

Concept

(3) is a non-zero rational number and \(\sqrt{7}\) is irrational.

Step 2

Why this answer is correct

\(3\sqrt{7}\) remains irrational.

Step 3

Exam Tip

Multiplication by zero is a special case, so focus on non-zero rational factors. चरण 1: (3) अशून्य परिमेय है और \(\sqrt{7}\) अपरिमेय है। चरण 2: \(3\sqrt{7}\) अपरिमेय रहेगा। चरण 3: शून्य से गुणा करने का मामला अलग होता है, इसलिए अशून्य परिमेय पर ध्यान दें।

Open Question Page
Ask Friends
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.