यदि (G(t)=320-rt) और (G(4)=G(13)+144), तो (r) क्या है?
If (G(t)=320-rt) and (G(4)=G(13)+144), what is (r)?
Explanation opens after your attempt
C. (16)
Concept
(G(4)-G(13)=9r). From (9r=144), (r=16).
Why this answer is correct
The correct answer is C. (16). (G(4)-G(13)=9r). From (9r=144), (r=16).
Exam Tip
(G(4)-G(13)=9r) है। (9r=144) से (r=16) मिलता है।
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