असमानता \(\frac{9-x}{-2}<4\) का संख्या रेखा हल कौन-सा है?
Which is the number line solution of \(\frac{9-x}{-2}<4\)?
Explanation opens after your attempt
B. (x>1), (1) पर खुला बिंदु और दाईं ओर(x>1), open dot at (1) shaded right
Concept
Multiplying by (-2) reverses the sign to (9-x>-8), so (x<17), not (x>17). In exams, reverse the sign when removing a negative denominator.
Why this answer is correct
The correct answer is B. (x>1), (1) पर खुला बिंदु और दाईं ओर / (x>1), open dot at (1) shaded right. Multiplying by (-2) reverses the sign to (9-x>-8), so (x<17), not (x>17). In exams, reverse the sign when removing a negative denominator.
Exam Tip
(-2) से गुणा करने पर चिन्ह पलटकर (9-x>-8), इसलिए (x<17) नहीं बल्कि (x<17) मिलता है। परीक्षा में negative denominator हटाते समय चिन्ह पलटें।
Login to save your score, XP, coins and progress.
