एक मशीन पहले घंटे (20) पैकेट बनाती है और हर अगले घंटे (5) पैकेट अधिक बनाती है। (10)वें घंटे में कितने पैकेट बनेंगे?
A machine makes (20) packets in the first hour and (5) more packets each next hour. How many packets are made in the (10)th hour?
Explanation opens after your attempt
C. (65)
Concept
The packet numbers are \(20,25,30,\ldots\) and \(a_{10}=65\). Exam tip: take the hour as the term number.
Why this answer is correct
The correct answer is C. (65). The packet numbers are \(20,25,30,\ldots\) and \(a_{10}=65\). Exam tip: take the hour as the term number.
Exam Tip
पैकेटों की संख्या \(20,25,30,\ldots\) है और \(a_{10}=65\)। परीक्षा में घंटे को पद संख्या मानें।
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