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pair MCQ Questions for Class 10

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3 questions tagged with pair.

Question 1/3 Easy Mathematics Quadratic Equations Nature of Roots Class 10 Level 37

समीकरण \(x^2+5x+6=0\) के लिए विविक्तकर और प्रकृति का सही युग्म कौन सा है?

Which pair of discriminant and nature is correct for \(x^2+5x+6=0\)?

Explanation opens after your attempt
Correct Answer

A. (D=1), दो वास्तविक और असमान(D=1), two real and distinct

Step 1

Concept

(D=52-4(1)(6)=1). A positive (D) gives real and distinct roots.

Step 2

Why this answer is correct

The correct answer is A. (D=1), दो वास्तविक और असमान / (D=1), two real and distinct. (D=52-4(1)(6)=1). A positive (D) gives real and distinct roots.

Step 3

Exam Tip

(D=52-4(1)(6)=1) है। धनात्मक (D) से वास्तविक और असमान मूल होते हैं।

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Question 2/3 Easy Mathematics Quadratic Equations Methods of Solving Quadratic Equations Class 10 Level 36

\(x^2+3x-40=0\) में मध्य पद बनाने के लिए कौनसी संख्या जोड़ी सही है?

Which number pair is correct for making the middle term in \(x^2+3x-40=0\)?

Explanation opens after your attempt
Correct Answer

A. (8) और (-5)(8) and (-5)

Step 1

Concept

(8+(-5)=3) and \(8\times(-5)=-40\), so this pair is correct. In exams, match the sum with (b) and product with (c).

Step 2

Why this answer is correct

The correct answer is A. (8) और (-5) / (8) and (-5). (8+(-5)=3) and \(8\times(-5)=-40\), so this pair is correct. In exams, match the sum with (b) and product with (c).

Step 3

Exam Tip

(8+(-5)=3) और \(8\times(-5)=-40\), इसलिए यह जोड़ी सही है। परीक्षा में योग (b) और गुणनफल (c) से मिलाएं।

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Question 3/3 Easy Mathematics Quadratic Equations Methods of Solving Quadratic Equations Class 10 Level 35

\(x^2+2x-24=0\) में मध्य पद बनाने के लिए कौनसी संख्या जोड़ी सही है?

Which number pair is correct for making the middle term in \(x^2+2x-24=0\)?

Explanation opens after your attempt
Correct Answer

A. (6) और (-4)(6) and (-4)

Step 1

Concept

(6+(-4)=2) and \(6\times(-4)=-24\), so this pair is correct. In exams, match the sum with (b) and product with (c).

Step 2

Why this answer is correct

The correct answer is A. (6) और (-4) / (6) and (-4). (6+(-4)=2) and \(6\times(-4)=-24\), so this pair is correct. In exams, match the sum with (b) and product with (c).

Step 3

Exam Tip

(6+(-4)=2) और \(6\times(-4)=-24\), इसलिए यह जोड़ी सही है। परीक्षा में योग (b) और गुणनफल (c) से मिलाएं।

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