एक वस्तु की कीमत (P(n)=a+20n) है। यदि (P(6)=230), तो (P(13)) क्या है?
The price of an item is (P(n)=a+20n). If (P(6)=230), what is (P(13))?
Explanation opens after your attempt
C. (370)
Concept
From (a+120=230), (a=110). (P(13)=110+260=370).
Why this answer is correct
The correct answer is C. (370). From (a+120=230), (a=110). (P(13)=110+260=370).
Exam Tip
(a+120=230) से (a=110) है। (P(13)=110+260=370) है।
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