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 31-40 of 649 questions.
Which is a correct example of a terminating decimal?
A. (4.125)
(4.125) कुछ अंकों के बाद समाप्त हो जाता है। सांत दशमलव हमेशा परिमेय होता है। / (4.125) ends after a finite number of digits. A terminating decimal is always rational.
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What is the simplest form of \(\sqrt{20}+\sqrt{45}\)?
A. \(5\sqrt{5}\)
\(\sqrt{20}=2\sqrt{5}\) और \(\sqrt{45}=3\sqrt{5}\) है। जोड़ने पर \(5\sqrt{5}\) मिलता है। / \(\sqrt{20}=2\sqrt{5}\) and \(\sqrt{45}=3\sqrt{5}\). Adding gives \(5\sqrt{5}\).
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Which option can be represented on the number line?
A. हर वास्तविक संख्याEvery real number
संख्या रेखा पर सभी वास्तविक संख्याएँ दर्शाई जा सकती हैं। इसमें परिमेय और अपरिमेय दोनों आते हैं। / All real numbers can be represented on the number line. This includes both rational and irrational numbers.
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Which is the simplified form of \(\sqrt{27}\)?
A. \(3\sqrt{3}\)
\(\sqrt{27}=\sqrt{9\times3}=3\sqrt{3}\) है। सबसे बड़े पूर्ण वर्ग गुणनखंड को निकालें। / \(\sqrt{27}=\sqrt{9\times3}=3\sqrt{3}\). Take out the greatest perfect square factor.
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A. परिमेय संख्याRational number
अनंत आवर्ती दशमलव परिमेय होता है। अनंत देखकर तुरंत अपरिमेय न मानें। / A non terminating repeating decimal is rational. Do not call it irrational just because it is non terminating.
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What is the correct simplified form of \(\sqrt{2}+\sqrt{8}\)?
A. \(3\sqrt{2}\)
\(\sqrt{8}=2\sqrt{2}\) इसलिए योग \(3\sqrt{2}\) है। पहले सरल करें फिर समान पद जोड़ें। / \(\sqrt{8}=2\sqrt{2}\) so the sum is \(3\sqrt{2}\). Simplify first and then add like terms.
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What is the decimal expansion of \(\frac{1}{7}\) like?
A. अनंत और आवर्तीNon terminating and repeating
\(\frac{1}{7}\) परिमेय है और इसका दशमलव आवर्ती होता है। परिमेय संख्याएँ सांत या आवर्ती दशमलव देती हैं। / \(\frac{1}{7}\) is rational and its decimal is repeating. Rational numbers give terminating or repeating decimals.
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Which option shows the sum of a rational and an irrational number?
A. \(4+\sqrt{7}\)
(4) परिमेय है और \(\sqrt{7}\) अपरिमेय है। उनका योग अपरिमेय होगा। / (4) is rational and \(\sqrt{7}\) is irrational. Their sum will be irrational.
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A. प्रत्येक अपरिमेय संख्या वास्तविक होती हैEvery irrational number is real
अपरिमेय संख्याएँ वास्तविक संख्याओं का भाग हैं। लेकिन सभी वास्तविक संख्याएँ अपरिमेय नहीं होतीं। / Irrational numbers are a part of real numbers. But all real numbers are not irrational.
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What type of number is the value of \(\sqrt{0.04}\)?
A. परिमेय संख्याRational number
\(\sqrt{0.04}=0.2\) है जो सांत दशमलव है। इसलिए यह परिमेय है। / \(\sqrt{0.04}=0.2\) which is a terminating decimal. So it is rational.
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