Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 141-150 of 591 questions.
B. \(12\le g\le 28\)
कम से कम (12) का अर्थ \(g\ge 12\) और अधिकतम (28) का अर्थ \(g\le 28\) है। दोनों को मिलाकर \(12\le g\le 28\) मिलता है। / At least (12) means \(g\ge 12\), and at most (28) means \(g\le 28\). Combining both gives \(12\le g\le 28\).
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What is the solution of the inequality \(6x-5\ge 19\)?
A. \(x\ge 4\)
पहले दोनों ओर (5) जोड़ें तो \(6x\ge 24\) मिलता है फिर (6) से भाग दें। धनात्मक भाग में चिह्न नहीं बदलता। / First add (5) to both sides to get \(6x\ge 24\), then divide by (6). Division by a positive number does not change the sign.
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Which is the correct solution of (3(x-2)<15)?
A. (x<7)
पहले (3) से भाग देने पर (x-2<5) मिलता है और फिर (x<7)। कोष्ठक वाले प्रश्न में क्रम सही रखें। / First divide by (3) to get (x-2<5), then (x<7). Keep the order correct in bracket questions.
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If (x) is an integer and \(2\le x<8\), how many values are possible?
B. (6)
संभव पूर्णांक (2,3,4,5,6,7) हैं इसलिए कुल (6) मान हैं। \(\le\) सीमा को शामिल करता है पर (<) सीमा को नहीं। / The possible integers are (2,3,4,5,6,7), so there are (6) values. The sign \(\le\) includes the endpoint but (<) does not.
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How do we write the interval ((-3,5]) as an inequality?
A. \(-3<x\le 5\)
((-3) बताता है कि (-3) शामिल नहीं है और (5]) बताता है कि (5) शामिल है। इसलिए \(-3<x\le 5\) सही है। / The symbol ((-3) shows that (-3) is not included and (5]) shows that (5) is included. Therefore \(-3<x\le 5\) is correct.
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A. (x+4>10)
संख्या में (4) जोड़ने का रूप (x+4) है और अधिक है का चिह्न (>) है। इसलिए (x+4>10) सही है। / Adding (4) to a number is written as (x+4), and greater than uses (>). Therefore (x+4>10) is correct.
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What is the solution of the inequality \(\frac{x}{7}>2\)?
A. (x>14)
दोनों ओर (7) से गुणा करने पर (x>14) मिलता है। धनात्मक गुणा में असमानता की दिशा नहीं बदलती। / Multiplying both sides by (7) gives (x>14). Positive multiplication does not change the inequality direction.
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Which is the correct solution of \(7-x\ge 2\)?
A. \(x\le 5\)
\(7-x\ge 2\) से \(-x\ge -5\) मिलता है और ऋणात्मक से भाग देने पर \(x\le 5\)। (-x) हटाते समय चिह्न पलटें। / From \(7-x\ge 2\), we get \(-x\ge -5\), and dividing by a negative gives \(x\le 5\). Reverse the sign when removing (-x).
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If \(x\ge -3\), which statement is correct after multiplying both sides by (-2)?
B. \(-2x\le 6\)
ऋणात्मक संख्या (-2) से गुणा करने पर असमानता का चिह्न पलटता है। इसलिए \(-2x\le 6\) सही है। / Multiplying by the negative number (-2) reverses the inequality sign. Therefore \(-2x\le 6\) is correct.
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What is the correct solution of the inequality (2(3-x)\le 8)?
A. \(x\ge -1\)
पहले (2) से भाग देने पर \(3-x\le 4\) मिलता है और फिर \(-x\le 1\) से \(x\ge -1\) आता है। ऋणात्मक चर हटाते समय चिह्न पलटना याद रखें। / First divide by (2) to get \(3-x\le 4\), then \(-x\le 1\) gives \(x\ge -1\). Remember to reverse the sign when removing a negative variable.
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