एक दान अभियान में पहले दिन (200) रुपये मिले और हर अगले दिन (50) रुपये अधिक मिले। (10) दिनों में कुल कितना दान मिला?
In a donation campaign (200) rupees are received on the first day and (50) rupees more each next day. What is the total donation in (10) days?
Explanation opens after your attempt
B. (4250)
Concept
The donation amounts are \(200,250,300,\ldots\) and \(S_{10}=4250\). Exam tip: first and last day amounts are useful for total donation.
Why this answer is correct
The correct answer is B. (4250). The donation amounts are \(200,250,300,\ldots\) and \(S_{10}=4250\). Exam tip: first and last day amounts are useful for total donation.
Exam Tip
दान राशि \(200,250,300,\ldots\) है और \(S_{10}=4250\)। परीक्षा में कुल दान के लिए प्रथम और अंतिम दिन की राशि भी उपयोगी होती है।
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