समीकरण (5x+by=20) और (10x+6y=40) के अनंत हल होने के लिए (b) का मान क्या है?
What is the value of (b) for (5x+by=20) and (10x+6y=40) to have infinitely many solutions?
Explanation opens after your attempt
B. (3)
Concept
For infinitely many solutions (5/10=b/6=20/40) must hold. Therefore (b=3).
Why this answer is correct
The correct answer is B. (3). For infinitely many solutions (5/10=b/6=20/40) must hold. Therefore (b=3).
Exam Tip
अनंत हल के लिए (5/10=b/6=20/40) होना चाहिए। इसलिए (b=3) है।
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