यदि (3x+2y=130) और (2x+3y=120), तो (y) का मान क्या होगा?

If (3x+2y=130) and (2x+3y=120), what will be the value of (y)?

Explanation opens after your attempt
Correct Answer

C. (20)

Step 1

Concept

Multiply the first equation by (3) and the second by (2), then subtract. This gives (5x=150), then (y=20).

Step 2

Why this answer is correct

The correct answer is C. (20). Multiply the first equation by (3) and the second by (2), then subtract. This gives (5x=150), then (y=20).

Step 3

Exam Tip

पहले समीकरण को (3) और दूसरे को (2) से गुणा कर घटाएं। इससे (5x=150), फिर (y=20)।

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Mathematics Answer, Explanation and Revision Hints

यदि (3x+2y=130) और (2x+3y=120), तो (y) का मान क्या होगा? / If (3x+2y=130) and (2x+3y=120), what will be the value of (y)?

Correct Answer: C. (20). Explanation: पहले समीकरण को (3) और दूसरे को (2) से गुणा कर घटाएं। इससे (5x=150), फिर (y=20)। / Multiply the first equation by (3) and the second by (2), then subtract. This gives (5x=150), then (y=20).

Which concept should I revise for this Mathematics MCQ?

Multiply the first equation by (3) and the second by (2), then subtract. This gives (5x=150), then (y=20).

What exam hint can help solve this Mathematics question?

पहले समीकरण को (3) और दूसरे को (2) से गुणा कर घटाएं। इससे (5x=150), फिर (y=20)।