यदि दो रेखाएं (2x+ay=10) और (6x+9y=30) संपाती हों, तो (a) का मान क्या है?

If the lines (2x+ay=10) and (6x+9y=30) are coincident, what is the value of (a)?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

For coincident lines, \(\frac{2}{6}=\frac{a}{9}=\frac{10}{30}\), so (a=3). All coefficients must be in the same ratio.

Step 2

Why this answer is correct

The correct answer is C. (3). For coincident lines, \(\frac{2}{6}=\frac{a}{9}=\frac{10}{30}\), so (a=3). All coefficients must be in the same ratio.

Step 3

Exam Tip

संपाती के लिए \(\frac{2}{6}=\frac{a}{9}=\frac{10}{30}\), इसलिए (a=3)। सभी गुणांक समान अनुपात में होने चाहिए।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

यदि दो रेखाएं (2x+ay=10) और (6x+9y=30) संपाती हों, तो (a) का मान क्या है? / If the lines (2x+ay=10) and (6x+9y=30) are coincident, what is the value of (a)?

Correct Answer: C. (3). Explanation: संपाती के लिए \(\frac{2}{6}=\frac{a}{9}=\frac{10}{30}\), इसलिए (a=3)। सभी गुणांक समान अनुपात में होने चाहिए। / For coincident lines, \(\frac{2}{6}=\frac{a}{9}=\frac{10}{30}\), so (a=3). All coefficients must be in the same ratio.

Which concept should I revise for this Mathematics MCQ?

For coincident lines, \(\frac{2}{6}=\frac{a}{9}=\frac{10}{30}\), so (a=3). All coefficients must be in the same ratio.

What exam hint can help solve this Mathematics question?

संपाती के लिए \(\frac{2}{6}=\frac{a}{9}=\frac{10}{30}\), इसलिए (a=3)। सभी गुणांक समान अनुपात में होने चाहिए।