यदि (px+2y=18) और (3x-y=5) का हल (x=4,\ y=7) है, तो (p) का मान क्या है?

If (px+2y=18) and (3x-y=5) have solution (x=4,\ y=7), what is the value of (p)?

Explanation opens after your attempt
Correct Answer

A. (p=1)

Step 1

Concept

Put (x=4,\ y=7) in (px+2y=18). (4p+14=18), so (p=1).

Step 2

Why this answer is correct

The correct answer is A. (p=1). Put (x=4,\ y=7) in (px+2y=18). (4p+14=18), so (p=1).

Step 3

Exam Tip

(x=4,\ y=7) को (px+2y=18) में रखें। (4p+14=18), इसलिए (p=1)।

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Mathematics Answer, Explanation and Revision Hints

यदि (px+2y=18) और (3x-y=5) का हल (x=4,\ y=7) है, तो (p) का मान क्या है? / If (px+2y=18) and (3x-y=5) have solution (x=4,\ y=7), what is the value of (p)?

Correct Answer: A. (p=1). Explanation: (x=4,\ y=7) को (px+2y=18) में रखें। (4p+14=18), इसलिए (p=1)। / Put (x=4,\ y=7) in (px+2y=18). (4p+14=18), so (p=1).

Which concept should I revise for this Mathematics MCQ?

Put (x=4,\ y=7) in (px+2y=18). (4p+14=18), so (p=1).

What exam hint can help solve this Mathematics question?

(x=4,\ y=7) को (px+2y=18) में रखें। (4p+14=18), इसलिए (p=1)।