यदि (a=7) और (d=3) है, तो पहले (6) पदों का योग क्या होगा?
If (a=7) and (d=3), what will be the sum of the first (6) terms?
Explanation opens after your attempt
C. (87)
Concept
The first (6) terms are (7,10,13,16,19,22), and their sum is (87). For small (n), writing and adding terms is easy.
Why this answer is correct
The correct answer is C. (87). The first (6) terms are (7,10,13,16,19,22), and their sum is (87). For small (n), writing and adding terms is easy.
Exam Tip
पहले (6) पद (7,10,13,16,19,22) हैं और योग (87) है। छोटे (n) में पद लिखकर जोड़ना आसान है।
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