Concept-wise Practice

divisible by 5 MCQ Questions for Class 10

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Practice Questions

3 questions tagged with divisible by 5.

Question 1/3 Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

यदि (p) और (q) दोनों (5) से विभाज्य हैं, तो उनके सहअभाज्य होने पर क्या असर पड़ेगा?

If both (p) and (q) are divisible by (5), what happens to their being coprime?

Explanation opens after your attempt
Correct Answer

A. वे सहअभाज्य नहीं रहेंगेThey will not remain coprime

Step 1

Concept

If both are divisible by (5), then (5) is a common factor.

Step 2

Why this answer is correct

Coprime numbers should not have a common factor other than (1).

Step 3

Exam Tip

So this situation goes against being coprime. चरण 1: दोनों (5) से विभाज्य हैं तो (5) साझा गुणनखंड है। चरण 2: सहअभाज्य संख्याओं में (1) के अलावा साझा गुणनखंड नहीं होना चाहिए। चरण 3: इसलिए यह स्थिति सहअभाज्य होने के विरुद्ध है।

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Question 2/3 Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

यदि (p) और (q) दोनों (5) से विभाज्य हों, तो क्या निष्कर्ष निकलेगा?

If (p) and (q) are both divisible by (5), what conclusion follows?

Explanation opens after your attempt
Correct Answer

A. वे सहअभाज्य नहीं हैंThey are not coprime

Step 1

Concept

If both are divisible by (5), then (5) is a common factor.

Step 2

Why this answer is correct

Coprime numbers cannot have such a common factor.

Step 3

Exam Tip

This creates the contradiction in the proof of \(\sqrt{5}\). चरण 1: दोनों (5) से विभाज्य हैं तो (5) साझा गुणनखंड है। चरण 2: सहअभाज्य संख्याओं में ऐसा साझा गुणनखंड नहीं हो सकता। चरण 3: \(\sqrt{5}\) के प्रमाण में यही विरोधाभास बनता है।

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Question 3/3 Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

यदि (p) (5) से विभाज्य है, तो (p) का सही रूप कौन सा है?

If (p) is divisible by (5), which is the correct form of (p)?

Explanation opens after your attempt
Correct Answer

A. (p=5k), जहां (k) पूर्णांक है(p=5k), where (k) is an integer

Step 1

Concept

A number divisible by (5) has (5) as a factor.

Step 2

Why this answer is correct

So (p) can be written as (p=5k).

Step 3

Exam Tip

Substituting this form in the original equation gives the same conclusion for (q). चरण 1: (5) से विभाज्य संख्या में (5) गुणनखंड होता है। चरण 2: इसलिए (p=5k) लिखा जा सकता है। चरण 3: इस रूप को मूल समीकरण में रखने से (q) के लिए भी समान निष्कर्ष मिलता है।

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