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 41-50 of 600 questions.
What is the additive inverse of ( -9 )?
D. (9)
योज्य प्रतिलोम जोड़ने पर (0) देता है। ( -9+9=0 ) इसलिए उत्तर (9) है। / The additive inverse gives (0) when added. Since ( -9+9=0 ), the answer is (9).
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What is the multiplicative inverse of \( \frac{4}{7} \)?
A. \( \frac{7}{4} \)
गुणात्मक प्रतिलोम में अंश और हर बदल जाते हैं। \( \frac{4}{7}\times\frac{7}{4}=1 \)। / In the multiplicative inverse, numerator and denominator are interchanged. \( \frac{4}{7}\times\frac{7}{4}=1 \).
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Which real number is neither positive nor negative?
A. (0)
(0) न धनात्मक होता है न ऋणात्मक। संख्या वर्गीकरण में (0) को अलग रखें। / (0) is neither positive nor negative. Keep (0) separate in number classification.
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Which option shows the correct order?
A. ( -3<-1<2 )
संख्या रेखा पर बाईं संख्या छोटी और दाईं संख्या बड़ी होती है। इसलिए ( -3<-1<2 ) सही है। / On the number line, the left number is smaller and the right number is greater. Therefore ( -3<-1<2 ) is correct.
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What is the value of \( \sqrt{121} \)?
B. (11)
\(11^2=121\) इसलिए \( \sqrt{121}=11 \)। पूर्ण वर्गों की सूची याद रखना उपयोगी है। / Since \(11^2=121\), \( \sqrt{121}=11 \). Remembering perfect squares is useful.
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What is the simplified form of \( \sqrt{12} \)?
B. \(2\sqrt{3}\)
\(12=4\times3\) इसलिए \( \sqrt{12}=2\sqrt{3} \)। पूर्ण वर्ग गुणनखंड को वर्गमूल से बाहर निकालें। / Since \(12=4\times3\), \( \sqrt{12}=2\sqrt{3} \). Take the perfect-square factor outside the square root.
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Which option has one rational and one irrational real number?
A. (5) और \( \sqrt{2} \)(5) and \( \sqrt{2} \)
(5) परिमेय है और \( \sqrt{2} \) अपरिमेय है। दोनों वास्तविक संख्या रेखा पर स्थित हैं। / (5) is rational and \( \sqrt{2} \) is irrational. Both lie on the real number line.
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Which is greater between \( \sqrt{5} \) and \( \sqrt{6} \)?
B. \( \sqrt{6} \)
धनात्मक संख्याओं में बड़ी संख्या का वर्गमूल भी बड़ा होता है। (6>5) इसलिए \( \sqrt{6}>\sqrt{5} \)। / For positive numbers, the square root of the greater number is also greater. Since (6>5), \( \sqrt{6}>\sqrt{5} \).
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What type of number is \(3+\sqrt{2}\)?
B. अपरिमेय वास्तविक संख्याIrrational real number
परिमेय संख्या (3) में अपरिमेय \( \sqrt{2} \) जोड़ने पर सामान्यतः अपरिमेय संख्या मिलती है। यह वास्तविक संख्या भी है। / Adding the irrational \( \sqrt{2} \) to the rational number (3) generally gives an irrational number. It is also real.
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Where is \( \sqrt{0} \) located on the real number line?
A. (0) परAt (0)
\( \sqrt{0}=0 \) होता है। इसलिए यह संख्या रेखा पर मूल बिंदु पर स्थित है। / \( \sqrt{0}=0 \). Therefore it is located at the origin on the number line.
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