यदि (y=400-25x), तो (y) में (175) की कमी के लिए (x) कितना बढ़ना चाहिए?
If (y=400-25x), by how much should (x) increase for (y) to decrease by (175)?
Explanation opens after your attempt
C. (7)
Concept
The total decrease is \(25\Delta x\). From \(25\Delta x=175\), \(\Delta x=7\).
Why this answer is correct
The correct answer is C. (7). The total decrease is \(25\Delta x\). From \(25\Delta x=175\), \(\Delta x=7\).
Exam Tip
कुल कमी \(25\Delta x\) होगी। \(25\Delta x=175\) से \(\Delta x=7\) मिलता है।
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