यदि (K(t)=120-5t), तो (K(t)-K(3t)) क्या है?
If (K(t)=120-5t), what is (K(t)-K(3t))?
Explanation opens after your attempt
B. (10t)
Concept
(K(3t)=120-15t). (K(t)-K(3t)=120-5t-(120-15t)=10t).
Why this answer is correct
The correct answer is B. (10t). (K(3t)=120-15t). (K(t)-K(3t)=120-5t-(120-15t)=10t).
Exam Tip
(K(3t)=120-15t) है। (K(t)-K(3t)=120-5t-(120-15t)=10t) है।
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