यदि (2x+ky=15) और (x-2y=1) का हल (x=5,\ y=2) है, तो (k) का मान क्या है?

If (2x+ky=15) and (x-2y=1) have solution (x=5,\ y=2), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

C. \(k=\frac{5}{2}\)

Step 1

Concept

Put (x=5,\ y=2) in (2x+ky=15). (10+2k=15), so \(k=\frac{5}{2}\).

Step 2

Why this answer is correct

The correct answer is C. \(k=\frac{5}{2}\). Put (x=5,\ y=2) in (2x+ky=15). (10+2k=15), so \(k=\frac{5}{2}\).

Step 3

Exam Tip

(x=5,\ y=2) को (2x+ky=15) में रखें। (10+2k=15), इसलिए \(k=\frac{5}{2}\)।

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यदि (2x+ky=15) और (x-2y=1) का हल (x=5,\ y=2) है, तो (k) का मान क्या है? / If (2x+ky=15) and (x-2y=1) have solution (x=5,\ y=2), what is the value of (k)?

Correct Answer: C. \(k=\frac{5}{2}\). Explanation: (x=5,\ y=2) को (2x+ky=15) में रखें। (10+2k=15), इसलिए \(k=\frac{5}{2}\)। / Put (x=5,\ y=2) in (2x+ky=15). (10+2k=15), so \(k=\frac{5}{2}\).

Which concept should I revise for this Mathematics MCQ?

Put (x=5,\ y=2) in (2x+ky=15). (10+2k=15), so \(k=\frac{5}{2}\).

What exam hint can help solve this Mathematics question?

(x=5,\ y=2) को (2x+ky=15) में रखें। (10+2k=15), इसलिए \(k=\frac{5}{2}\)।