समीकरणों (7x+qy=29) और (14x+10y=58) के अनंत हल होने के लिए (q) का मान क्या है?
What is the value of (q) for the equations (7x+qy=29) and (14x+10y=58) to have infinitely many solutions?
Explanation opens after your attempt
C. (5)
Concept
The second equation is (2) times the first, so (q/10=1/2) must hold. Hence, (q=5).
Why this answer is correct
The correct answer is C. (5). The second equation is (2) times the first, so (q/10=1/2) must hold. Hence, (q=5).
Exam Tip
दूसरा समीकरण पहले का (2) गुना है, इसलिए (q/10=1/2) होना चाहिए। अतः (q=5)।
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