The simplest value of \(\left( {\frac{1}{{\sqrt 9 - \sqrt 8 }} - \frac{1}{{\sqrt 8 - \sqrt 7 }} + \frac{1}{{\sqrt 7 - \sqrt 6 }} - \frac{1}{{\sqrt 6 - \sqrt 5 }}} \right)\) is = ?
\(3 - \sqrt 5 \)
3
\(\sqrt 5 \)
\(\sqrt 5 - 3\)
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1
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The difference of \({ \text{1}}\frac{3}{{16}}\) and its reciprocal is equal to = ?
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2
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\(\frac{{20 + 8 \times 0.5}}{{20 - ?}}{ \text{ = 12}}\) Find the value in place of (?)
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3
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24.962 ÷ (34.11 ÷ 20.05) + 67.96 - 89.11 = ?
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4
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A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:
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5
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If \(\root 3 \of {{3^n}} { \text{ = 27,}}\) then the value of n is = ?
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6
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If x + y = 2a, then the value of
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7
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A teacher wants to arrange his students in an equal number of rows and columns. If there are 1369 students, the number of students in the last row are ?
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8
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What is \(\frac{{\frac{7}{8} \times \frac{7}{8} + \frac{5}{6} \times \frac{5}{6} + \frac{7}{8} \times \frac{5}{3}}}{{\frac{7}{8} \times \frac{7}{8} - \frac{5}{6} \times \frac{5}{6}}}\) equal to ?
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9
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\(\frac{{225}}{{836}} \times \frac{{152}}{{245}} \div 1\frac{{43}}{{77}} = ?\)
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10
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If \(\frac{1}{3} + \frac{1}{2} + \frac{1}{x}{ \text{ = 4}}\) then x = ?
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