यदि (a=15) और (d=4) है, तो समानांतर श्रेढ़ी का (9)वाँ पद क्या होगा?
If (a=15) and (d=4), what will be the (9)th term of the arithmetic progression?
Explanation opens after your attempt
B. (47)
Concept
(a_9=15+8(4)=47). Up to the (9)th term, (8) common differences are added.
Why this answer is correct
The correct answer is B. (47). (a_9=15+8(4)=47). Up to the (9)th term, (8) common differences are added.
Exam Tip
(a_9=15+8(4)=47)। (9)वें पद तक (8) समान अंतर जुड़ते हैं।
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