समीकरणों (7x+dy=63) और (28x+36y=252) के अनंत हल होने के लिए (d) का मान क्या है?

What is the value of (d) for the equations (7x+dy=63) and (28x+36y=252) to have infinitely many solutions?

Explanation opens after your attempt
Correct Answer

C. (9)

Step 1

Concept

For infinitely many solutions, (7/28=d/36=63/252) must hold. Therefore, (d=9).

Step 2

Why this answer is correct

The correct answer is C. (9). For infinitely many solutions, (7/28=d/36=63/252) must hold. Therefore, (d=9).

Step 3

Exam Tip

अनंत हल के लिए (7/28=d/36=63/252) होना चाहिए। इसलिए (d=9)।

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समीकरणों (7x+dy=63) और (28x+36y=252) के अनंत हल होने के लिए (d) का मान क्या है? / What is the value of (d) for the equations (7x+dy=63) and (28x+36y=252) to have infinitely many solutions?

Correct Answer: C. (9). Explanation: अनंत हल के लिए (7/28=d/36=63/252) होना चाहिए। इसलिए (d=9)। / For infinitely many solutions, (7/28=d/36=63/252) must hold. Therefore, (d=9).

Which concept should I revise for this Mathematics MCQ?

For infinitely many solutions, (7/28=d/36=63/252) must hold. Therefore, (d=9).

What exam hint can help solve this Mathematics question?

अनंत हल के लिए (7/28=d/36=63/252) होना चाहिए। इसलिए (d=9)।