Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
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Showing 531-540 of 600 questions.
What is the place value of (5) in (6.080500)?
C. \( \frac{5}{10000} \)
(5) दशमलव के बाद चौथे स्थान पर है। चौथा दशमलव स्थान दस हजारवां होता है। / (5) is in the fourth place after the decimal point. The fourth decimal place is ten-thousandths.
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Which relation is correct among (0.703125), \( \frac{45}{64} \), and \(0.703\overline{1}\)?
C. \(0.703\overline{1}<0.703125=\frac{45}{64}\)
\( \frac{45}{64}=0.703125 \) और \(0.703\overline{1}=0.703111\ldots\) है। इसलिए (0.703125) बड़ा है। / \( \frac{45}{64}=0.703125 \) and \(0.703\overline{1}=0.703111\ldots\). Therefore, (0.703125) is greater.
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If (a=0.609), (b=0.690), (c=0.6009), which is the correct descending order?
A. (b>a>c)
(0.690>0.609>0.6009) है। सभी दशमलवों को समान स्थान तक लिखकर तुलना करें। / (0.690>0.609>0.6009). Compare all decimals after writing them up to equal places.
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Which option is the decimal value of \( \frac{31}{250}+\frac{17}{640} \)?
A. (0.1505625)
\( \frac{31}{250}=0.124 \) और \( \frac{17}{640}=0.0265625 \), इसलिए योग (0.1505625) है। पहले भिन्नों को दशमलव में बदलें। / \( \frac{31}{250}=0.124 \) and \( \frac{17}{640}=0.0265625 \), so the sum is (0.1505625). First convert the fractions into decimals.
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Which option is the value of \( \frac{37}{128}-0.1640625 \)?
A. (0.125)
\( \frac{37}{128}=0.2890625 \), इसलिए (0.2890625-0.1640625=0.125) है। भिन्न को दशमलव में बदलकर घटाएं। / \( \frac{37}{128}=0.2890625 \), so (0.2890625-0.1640625=0.125). Convert the fraction into decimal and subtract.
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What is obtained by dividing (0.945) by (0.015)?
B. (63)
दोनों को (1000) से गुणा करने पर \(945\div15=63\) मिलता है। दशमलव हटाकर भाग देना आसान होता है। / Multiplying both by (1000) gives \(945\div15=63\). Removing decimals makes division easier.
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How is \(0.0969696\ldots\) written in bar notation?
B. \(0.0\overline{96}\)
पहले (0) के बाद (96) लगातार दोहरता है। बार केवल (96) पर लगाया जाएगा। / After the first (0), (96) repeats continuously. The bar will be placed only over (96).
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Which is the decimal expansion of \( \frac{43}{66} \)?
A. \(0.65151515\ldots\)
\(43\div66=0.65151515\ldots\) होता है। लंबी भाग विधि में (15) का समूह दोहरता है। / \(43\div66=0.65151515\ldots\). In long division, the block (15) repeats.
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C. (10)
\(2^{10}\) को \(10^{10}\) बनाने के लिए \(5^{10}\) से गुणा करना पड़ेगा। इसलिए अधिकतम (10) दशमलव स्थान होंगे। / To make \(2^{10}\) into \(10^{10}\), we multiply by \(5^{10}\). So there will be at most (10) decimal places.
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B. (8)
(2) और (5) की घातों में बड़ी घात (8) है। इसलिए सांत दशमलव में अधिकतम (8) स्थान होंगे। / The larger exponent among (2) and (5) is (8). So the terminating decimal will have at most (8) places.
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