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49 square MCQ Questions for Class 9

49 square 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 49 square.

Question 1/2 Easy Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 67

\(49^2\) को ( (50-1)2 ) से निकालने पर मान क्या होगा?

Using ( (50-1)2 ), what is the value of \(49^2\)?

Explanation opens after your attempt
Correct Answer

D. (2401)

Step 1

Concept

\(49^2=2500-100+1=2401\). Exam tip: subtract (2ab) in the square of a difference.

Step 2

Why this answer is correct

The correct answer is D. (2401). \(49^2=2500-100+1=2401\). Exam tip: subtract (2ab) in the square of a difference.

Step 3

Exam Tip

\(49^2=2500-100+1=2401\) होता है। परीक्षा में घटाव वाले वर्ग में (2ab) घटाएँ।

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Question 2/2 Medium Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 63

\( 49^2 \) निकालने के लिए (49) को किस रूप में लिखना सबसे सरल है?

To calculate \(49^2\), writing (49) in which form is simplest?

Explanation opens after your attempt
Correct Answer

C. (50-1)

Step 1

Concept

Writing (49=50-1) makes use of ( (a-b)2 ) easy. Exam tip: take a nearby round number.

Step 2

Why this answer is correct

The correct answer is C. (50-1). Writing (49=50-1) makes use of ( (a-b)2 ) easy. Exam tip: take a nearby round number.

Step 3

Exam Tip

(49=50-1) लिखने से ( (a-b)2 ) का उपयोग आसान होता है। परीक्षा में नजदीकी गोल संख्या लें।

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