Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
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B. (1.75)
अंतिम बिंदु (0+2.25-0.5=1.75) है। दाईं ओर जोड़ें और बाईं ओर घटाएं। / The final point is (0+2.25-0.5=1.75). Add for right movement and subtract for left movement.
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Which is the most accurate estimate of \(\sqrt{3}\) on the number line?
B. (1.7)
\(\sqrt{3}\) लगभग (1.732) है इसलिए (1.7) सबसे पास है। अनुमान के लिए \(\sqrt{3}\) को (1) और (2) के बीच रखें। / \(\sqrt{3}\) is about (1.732), so (1.7) is closest. For estimation place \(\sqrt{3}\) between (1) and (2).
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Which option shows two points at equal distance from (0) on the number line?
A. (2.5) और (-2.5)(2.5) and (-2.5)
(2.5) और (-2.5) दोनों की (0) से दूरी (2.5) है। विपरीत संख्याएं मूल बिंदु से बराबर दूरी पर होती हैं। / Both (2.5) and (-2.5) are (2.5) units from (0). Opposite numbers are equally distant from the origin.
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On the number line, \(0.333\ldots\) is equal to which fraction?
B. \(\frac{1}{3}\)
\(0.333\ldots=\frac{1}{3}\), इसलिए दोनों एक ही बिंदु पर होंगे। आवर्ती दशमलव को भिन्न से जोड़कर याद रखें। / \(0.333\ldots=\frac{1}{3}\), so both are at the same point. Connect recurring decimals with fractions.
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On the number line, \(\sqrt{20}\) is closest to which integer?
B. (4)
\(\sqrt{20}\) लगभग (4.47) है इसलिए यह (4) के अधिक पास है। \(\sqrt{20}\) को (4) और (5) के बीच रखकर दूरी सोचें। / \(\sqrt{20}\) is about (4.47), so it is closer to (4). Place \(\sqrt{20}\) between (4) and (5) and compare distances.
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B. \(\frac{1}{4}\)
कुल लंबाई (2) है और (8) भाग हैं इसलिए प्रत्येक भाग \(\frac{2}{8}=\frac{1}{4}\) है। बराबर भाग में कुल लंबाई को भागों से बांटें। / The total length is (2) and there are (8) parts, so each part is \(\frac{2}{8}=\frac{1}{4}\). Divide total length by the number of parts.
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What is the distance from (-1.2) to (0.3) on the number line?
C. (1.5)
दूरी (=|0.3-(-1.2)|=1.5) है। ऋणात्मक से धनात्मक तक जाते समय दोनों दूरियां जुड़ती हैं। / The distance is (|0.3-(-1.2)|=1.5). From negative to positive, the two distances add up.
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Which statement is true: on the number line, which is to the right, \(\sqrt{2}\) or \(\sqrt{3}\)?
B. \(\sqrt{3}\) दाईं ओर है\(\sqrt{3}\) is to the right
क्योंकि (3>2), इसलिए \(\sqrt{3}>\sqrt{2}\) है। धनात्मक वर्गमूलों में बड़ी संख्या का वर्गमूल बड़ा होता है। / Since (3>2), \(\sqrt{3}>\sqrt{2}\). For positive square roots, the root of the larger number is larger.
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On the number line, which point is closer to (1), \(\frac{9}{10}\) or (0.95)?
B. (0.95)
\(\frac{9}{10}=0.9\), जिसकी (1) से दूरी (0.1) है जबकि (0.95) की दूरी (0.05) है। कम दूरी वाला बिंदु पास होता है। / \(\frac{9}{10}=0.9\), whose distance from (1) is (0.1), while (0.95) has distance (0.05). The smaller distance is closer.
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For \(\sqrt{a^2}\) on the number line, if (a=-4), which point will it be?
B. (4)
\(\sqrt{a^2}=|a|\), इसलिए (a=-4) पर मान (4) होगा। वर्गमूल का मुख्य मान ऋणात्मक नहीं होता। / \(\sqrt{a^2}=|a|\), so for (a=-4) the value is (4). The principal square root is not negative.
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