एक मॉडल (R(t)=r-5t) में (R(4)=90) और (R(s)=55) है। (s) क्या है?
In the model (R(t)=r-5t), (R(4)=90) and (R(s)=55). What is (s)?
Explanation opens after your attempt
C. (11)
Concept
From (R(4)=90), (r=110). From (110-5s=55), (s=11).
Why this answer is correct
The correct answer is C. (11). From (R(4)=90), (r=110). From (110-5s=55), (s=11).
Exam Tip
(R(4)=90) से (r=110) है। (110-5s=55) से (s=11) मिलता है।
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