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 501-510 of 600 questions.
Which decimal expansion is non-terminating recurring?
B. \(\frac{1}{3}\)
\(\frac{1}{3}=0.333...\) आवर्ती है। भिन्न को दशमलव में सोचें। / \(\frac{1}{3}=0.333...\) is recurring. Convert fractions mentally.
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What is the value of \(\sqrt{49}+\sqrt{81}\)?
C. 16
(7+9=16)। पूर्ण वर्ग पहचानें। / (7+9=16). Recognize perfect squares.
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If \(\sqrt{7}\) is irrational then \(3\sqrt{7}\) is?
B. अपरिमेय
शून्येतर परिमेय से गुणा करने पर अपरिमेयता बनी रहती है। नियम याद रखें। / Multiplying by a non-zero rational keeps it irrational. Remember the rule.
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Which fraction has a terminating decimal?
C. \(\frac{13}{40}\)
हर के अभाज्य गुणनखंड केवल 2 और 5 हैं। यही शर्त है। / Denominator has only 2 and 5 as prime factors. That is the condition.
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What is \(\sqrt{64}-\sqrt{16}\)?
C. 4
(8-4=4)। वर्गमूल सही निकालें। / (8-4=4). Evaluate roots correctly.
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If \(x=\sqrt{2}\), what is \(x^2\)?
B. 2
वर्ग और वर्गमूल एक-दूसरे को समाप्त करते हैं। मूल नियम याद रखें। / Square and square root cancel each other. Use the basic rule.
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What type of decimal expansion does \(\frac{11}{125}\) have?
A. समाप्य
हर में केवल 5 का गुणनखंड है। इसलिए दशमलव समाप्य है। / Denominator contains only factor 5. Hence the decimal terminates.
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B. 1
\(\sqrt{121}=11\)। फिर \(11\div11=1\)। / \(\sqrt{121}=11\). Then \(11\div11=1\).
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If \(a=\sqrt{8}\), what is its simplified form?
B. \(2\sqrt{2}\)
\(8=4\times2\)। \(\sqrt{4}\) बाहर आएगा। / \(8=4\times2\). Take \(\sqrt{4}\) outside.
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B. \(\sqrt{2}+1\)
अपरिमेय और परिमेय का योग अपरिमेय होता है। नियम याद रखें। / Sum of an irrational and a rational is irrational. Remember the rule.
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