यदि (y=80+20x), तो (x) में कितनी वृद्धि करने पर (y) (160) बढ़ेगा?

If (y=80+20x), by how much must (x) increase for (y) to increase by (160)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (8)

Step 1

Concept

The total increase is \(20\Delta x\). From \(20\Delta x=160\), \(\Delta x=8\).

Step 2

Why this answer is correct

The correct answer is C. (8). The total increase is \(20\Delta x\). From \(20\Delta x=160\), \(\Delta x=8\).

Step 3

Exam Tip

कुल वृद्धि \(20\Delta x\) होगी। \(20\Delta x=160\) से \(\Delta x=8\) मिलता है।

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Mathematics Answer, Explanation and Revision Hints

यदि (y=80+20x), तो (x) में कितनी वृद्धि करने पर (y) (160) बढ़ेगा? / If (y=80+20x), by how much must (x) increase for (y) to increase by (160)?

Correct Answer: C. (8). Explanation: कुल वृद्धि \(20\Delta x\) होगी। \(20\Delta x=160\) से \(\Delta x=8\) मिलता है। / The total increase is \(20\Delta x\). From \(20\Delta x=160\), \(\Delta x=8\).

Which concept should I revise for this Mathematics MCQ?

The total increase is \(20\Delta x\). From \(20\Delta x=160\), \(\Delta x=8\).

What exam hint can help solve this Mathematics question?

कुल वृद्धि \(20\Delta x\) होगी। \(20\Delta x=160\) से \(\Delta x=8\) मिलता है।