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number-15840 MCQ Questions for Class 10

number-15840 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-15840.

Question 1/2 Hard Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 7

यदि \(15840=2^a\times3^2\times5\times11\), तो (a) का मान क्या है?

If \(15840=2^a\times3^2\times5\times11\), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. 5

Step 1

Concept

\(15840=32\times495\).

Step 2

Why this answer is correct

\(32=2^5\) and \(495=3^2\times5\times11\), so the power of 2 is 5.

Step 3

Exam Tip

Comparing gives (a=5). चरण 1: \(15840=32\times495\) है। चरण 2: \(32=2^5\) और \(495=3^2\times5\times11\), इसलिए 2 की घात 5 है। चरण 3: तुलना करने पर (a=5) मिलेगा।

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Question 2/2 Hard Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 7

संख्या 15840 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 15840?

Explanation opens after your attempt
Correct Answer

A. \(2^5\times3^2\times5\times11\)

Step 1

Concept

Write \(15840=32\times495\).

Step 2

Why this answer is correct

\(32=2^5\) and \(495=3^2\times5\times11\), so \(15840=2^5\times3^2\times5\times11\).

Step 3

Exam Tip

Give 495 its complete prime form. चरण 1: \(15840=32\times495\) लिखें। चरण 2: \(32=2^5\) और \(495=3^2\times5\times11\), इसलिए \(15840=2^5\times3^2\times5\times11\)। चरण 3: 495 को पूरा अभाज्य रूप दें।

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