यदि (y=180-12x), तो (y) में (72) की कमी के लिए (x) कितना बढ़ना चाहिए?
If (y=180-12x), by how much should (x) increase for (y) to decrease by (72)?
Explanation opens after your attempt
B. (6)
Concept
The total decrease is \(12\Delta x\). From \(12\Delta x=72\), \(\Delta x=6\).
Why this answer is correct
The correct answer is B. (6). The total decrease is \(12\Delta x\). From \(12\Delta x=72\), \(\Delta x=6\).
Exam Tip
कुल कमी \(12\Delta x\) होगी। \(12\Delta x=72\) से \(\Delta x=6\) मिलता है।
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