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Quiz Discussion

If $\left( {x + \frac{1}{x}} \right){ \text{ = }}\sqrt {13} { \text{,}}$ then the value of $\left( {{x^3} - \frac{1}{{{x^3}}}} \right)$ is = ?

Course Name: Quantitative Aptitude

1] 26
2] 27
3] 30
4] 36

Solution

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#	Quiz
1 Discuss	$1\frac{3}{4} - 1\frac{1}{5} + 1\frac{5}{8} = ?$ 1] $2\frac{7}{{40}}$ 2] $3\frac{7}{{40}}$ 3] $9\frac{5}{8}$ 4] $10\frac{7}{8}$ 5] None of these Solution
10 Discuss	Find the value of $\sqrt {248 + \sqrt {52 + \sqrt {144} } } = ?$ 1] -16 2] $\pm 16$ 3] 16 4] 16.2 Solution
2 Discuss	${{{{(469 + 174)}^2} - {{(469 - 174)}^2}} \over {(469 \times 174)}} = ?$ 1] 1 2] 4 3] 295 4] 643 Solution
3 Discuss	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 ? 1] 41/24 2] 1/24 3] 41 4] None of these Solution
4 Discuss	$6\frac{5}{6} \times 5\frac{1}{3} \times 17\frac{2}{3} \times 4\frac{1}{2} = ?$ 1] $112\frac{1}{3}$ 2] $116\frac{2}{3}$ 3] 240 4] 663 5] None of these Solution
5 Discuss	$\frac{{{{\left( {3\frac{2}{3}} \right)}^2} - {{\left( {2\frac{1}{2}} \right)}^2}}}{{{{\left( {4\frac{3}{4}} \right)}^2} - {{\left( {3\frac{1}{3}} \right)}^2}}}\div\frac{{3\frac{2}{3} - 2\frac{1}{2}}}{{4\frac{3}{4} - 3\frac{1}{3}}}$ = ? 1] 37/97 2] 74/97 3] $1\frac{{23}}{{74}}$ 4] None of these Solution
6 Discuss	(? - 968) / 79 * 4 = 512 1] 10185 2] 10190 3] 11075 4] 11080 5] None of these Solution
7 Discuss	The lowest temperature in the night in a city is one third more than 1/2 the highest during the day. Sum of the lowest temperature and the highest temperature is 100 degrees. Then what is the lowest temperature? 1] 30 degrees 2] 40 degrees 3] 36 degrees 4] None of these Solution
8 Discuss	Evaluate : ${{ - {{\left( {4 - 6} \right)}^2} - 3\left( { - 2} \right) + \left\| { - 6} \right\|} \over {18 - 9 \div 3 \times 5}}$ 1] $\frac{3}{8}$ 2] $\frac{4}{7}$ 3] $\frac{8}{3}$ 4] $\frac{7}{4}$ Solution
9 Discuss	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 ? 1] 37 2] 33 3] 63 4] 47 Solution
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