Medium Mathematics Arithmetic Progressions (AP) Class 10 Level 64

एक मशीन पहले घंटे (500) वस्तुएं बनाती है और हर अगले घंटे उत्पादन (20) वस्तुएं घटता है। (14)वें घंटे का उत्पादन क्या होगा?

A machine makes (500) items in the first hour and production decreases by (20) items each next hour. What is the production in the (14)th hour?

Explanation opens after your attempt
Correct Answer

A. (240)

Step 1

Concept

Here (a=500), (d=-20), so (a_{14}=500+13(-20)=240). In decreasing word problems, take (d) as negative.

Step 2

Why this answer is correct

The correct answer is A. (240). Here (a=500), (d=-20), so (a_{14}=500+13(-20)=240). In decreasing word problems, take (d) as negative.

Step 3

Exam Tip

यहां (a=500), (d=-20), इसलिए (a_{14}=500+13(-20)=240)। घटते शब्द-प्रश्न में (d) ऋणात्मक लें।

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Mathematics Answer, Explanation and Revision Hints

एक मशीन पहले घंटे (500) वस्तुएं बनाती है और हर अगले घंटे उत्पादन (20) वस्तुएं घटता है। (14)वें घंटे का उत्पादन क्या होगा? / A machine makes (500) items in the first hour and production decreases by (20) items each next hour. What is the production in the (14)th hour?

Correct Answer: A. (240). Explanation: यहां (a=500), (d=-20), इसलिए (a_{14}=500+13(-20)=240)। घटते शब्द-प्रश्न में (d) ऋणात्मक लें। / Here (a=500), (d=-20), so (a_{14}=500+13(-20)=240). In decreasing word problems, take (d) as negative.

Which concept should I revise for this Mathematics MCQ?

Here (a=500), (d=-20), so (a_{14}=500+13(-20)=240). In decreasing word problems, take (d) as negative.

What exam hint can help solve this Mathematics question?

यहां (a=500), (d=-20), इसलिए (a_{14}=500+13(-20)=240)। घटते शब्द-प्रश्न में (d) ऋणात्मक लें।

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