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Question Medium Mathematics Quadratic Equations Word Problems and Applications Class 10 Level 42

एक काम को (A) अकेला (x) दिनों में करता है और (B) अकेला (x+3) दिनों में करता है। दोनों मिलकर (2) दिनों में काम पूरा करते हैं। (A) अकेला कितने दिन लेगा?

Worker (A) alone completes a work in (x) days and worker (B) alone completes it in (x+3) days. Together they finish it in (2) days. How many days will (A) alone take?

Explanation opens after your attempt
Correct Answer

A. (3) दिन(3) days

Step 1

Concept

The equation is \(\frac{1}{x}+\frac{1}{x+3}=\frac{1}{2}\). This gives (x=3).

Step 2

Why this answer is correct

The correct answer is A. (3) दिन / (3) days. The equation is \(\frac{1}{x}+\frac{1}{x+3}=\frac{1}{2}\). This gives (x=3).

Step 3

Exam Tip

समीकरण \(\frac{1}{x}+\frac{1}{x+3}=\frac{1}{2}\) है। इससे (x=3) मिलता है।

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