यदि (-4x<20), तो सही हल क्या होगा?
If (-4x<20), what is the correct solution?
Explanation opens after your attempt
A. (x>-5)
Concept
Dividing by the negative number (-4) reverses the inequality sign. Hence (x>-5) is correct.
Why this answer is correct
The correct answer is A. (x>-5). Dividing by the negative number (-4) reverses the inequality sign. Hence (x>-5) is correct.
Exam Tip
ऋणात्मक संख्या (-4) से भाग देने पर असमानता का चिन्ह बदलता है। इसलिए (x>-5) सही है।
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