एक कपड़ा दुकान पहले दिन (80) मीटर कपड़ा बेचती है और हर अगले दिन (20) मीटर अधिक बेचती है। (8) दिनों में कुल कितने मीटर कपड़ा बिकेगा?
A cloth shop sells (80) metres of cloth on the first day and (20) metres more each next day. How many metres of cloth are sold in (8) days?
Explanation opens after your attempt
C. (1200)
Concept
The cloth sales form \(80,100,120,\ldots\) and \(S_8=1200\). Exam tip: use the sum formula for sales across all days.
Why this answer is correct
The correct answer is C. (1200). The cloth sales form \(80,100,120,\ldots\) and \(S_8=1200\). Exam tip: use the sum formula for sales across all days.
Exam Tip
कपड़े की बिक्री \(80,100,120,\ldots\) है और \(S_8=1200\)। परीक्षा में सभी दिनों की बिक्री के लिए योग सूत्र लगाएं।
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