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number-680400 MCQ Questions for Class 10

number-680400 se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with number-680400.

Question 1/2 Expert Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 8

यदि \(680400=2^4\times3^b\times5^2\times7\), तो (b) का मान क्या है?

If \(680400=2^4\times3^b\times5^2\times7\), what is the value of (b)?

Explanation opens after your attempt
Correct Answer

A. 5

Step 1

Concept

\(680400=16\times42525\).

Step 2

Why this answer is correct

\(42525=3^5\times5^2\times7\), so the power of 3 is 5.

Step 3

Exam Tip

Comparing gives (b=5). चरण 1: \(680400=16\times42525\) है। चरण 2: \(42525=3^5\times5^2\times7\), इसलिए 3 की घात 5 है। चरण 3: तुलना करने पर (b=5) होगा।

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Question 2/2 Expert Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 8

संख्या 680400 का सही अभाज्य गुणनखंडन क्या है?

What is the correct prime factorisation of 680400?

Explanation opens after your attempt
Correct Answer

A. \(2^4\times3^5\times5^2\times7\)

Step 1

Concept

Write \(680400=16\times42525\).

Step 2

Why this answer is correct

\(16=2^4\) and \(42525=3^5\times5^2\times7\), so the correct form is \(2^4\times3^5\times5^2\times7\).

Step 3

Exam Tip

Do not leave 42525 in the final form. चरण 1: \(680400=16\times42525\) लिखें। चरण 2: \(16=2^4\) और \(42525=3^5\times5^2\times7\), इसलिए सही रूप \(2^4\times3^5\times5^2\times7\) है। चरण 3: 42525 को अंतिम रूप में न छोड़ें।

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