यदि (D(t)=300-kt) और (D(4)-D(12)=104), तो (k) क्या है?

If (D(t)=300-kt) and (D(4)-D(12)=104), what is (k)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

C. (13)

Step 1

Concept

(D(4)-D(12)=k(12-4)=8k). From (8k=104), (k=13).

Step 2

Why this answer is correct

The correct answer is C. (13). (D(4)-D(12)=k(12-4)=8k). From (8k=104), (k=13).

Step 3

Exam Tip

(D(4)-D(12)=k(12-4)=8k) है। (8k=104) से (k=13) मिलता है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि (D(t)=300-kt) और (D(4)-D(12)=104), तो (k) क्या है? / If (D(t)=300-kt) and (D(4)-D(12)=104), what is (k)?

Correct Answer: C. (13). Explanation: (D(4)-D(12)=k(12-4)=8k) है। (8k=104) से (k=13) मिलता है। / (D(4)-D(12)=k(12-4)=8k). From (8k=104), (k=13).

Which concept should I revise for this Mathematics MCQ?

(D(4)-D(12)=k(12-4)=8k). From (8k=104), (k=13).

What exam hint can help solve this Mathematics question?

(D(4)-D(12)=k(12-4)=8k) है। (8k=104) से (k=13) मिलता है।