गुणोत्तर श्रेणी \(5,30,180,1080,\ldots\) के पहले (4) पदों का योग क्या है?
What is the sum of the first (4) terms of the geometric progression \(5,30,180,1080,\ldots\)?
Explanation opens after your attempt
B. (1295)
Concept
The sum of the first four terms is (5+30+180+1080=1295). In exams, direct addition is safe when the number of terms is small.
Why this answer is correct
The correct answer is B. (1295). The sum of the first four terms is (5+30+180+1080=1295). In exams, direct addition is safe when the number of terms is small.
Exam Tip
पहले चार पदों का योग (5+30+180+1080=1295) है। परीक्षा में पद कम हों तो सीधे जोड़ना सुरक्षित है।
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