यदि (y=85-3.5x), तो (x=4) से (x=12) तक (y) में कुल कमी कितनी होगी?

If (y=85-3.5x), what is the total decrease in (y) from (x=4) to (x=12)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (28)

Step 1

Concept

The change in (x) is (12-4=8). The total decrease is \(3.5\times8=28\).

Step 2

Why this answer is correct

The correct answer is C. (28). The change in (x) is (12-4=8). The total decrease is \(3.5\times8=28\).

Step 3

Exam Tip

(x) में परिवर्तन (12-4=8) है। कुल कमी \(3.5\times8=28\) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (y=85-3.5x), तो (x=4) से (x=12) तक (y) में कुल कमी कितनी होगी? / If (y=85-3.5x), what is the total decrease in (y) from (x=4) to (x=12)?

Correct Answer: C. (28). Explanation: (x) में परिवर्तन (12-4=8) है। कुल कमी \(3.5\times8=28\) है। / The change in (x) is (12-4=8). The total decrease is \(3.5\times8=28\).

Which concept should I revise for this Mathematics MCQ?

The change in (x) is (12-4=8). The total decrease is \(3.5\times8=28\).

What exam hint can help solve this Mathematics question?

(x) में परिवर्तन (12-4=8) है। कुल कमी \(3.5\times8=28\) है।