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Quiz Discussion

If x + y + z = 0, then x3 + y3 + z3 + 3xyz is equal to = ?

Course Name: Quantitative Aptitude

1] 0
2] 6xyz
3] 12xyz
4] xyz

Solution

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#	Quiz
1 Discuss	$\sqrt {\frac{{4\frac{1}{7} - 2\frac{1}{4}}}{{3\frac{1}{2} + 1\frac{1}{7}}} \div \frac{1}{{2 + \frac{1}{{2 + \frac{1}{{5 - \frac{1}{5}}}}}}}}$ is equal to = ? 1] 1 2] 4 3] 3 4] 2 Solution
10 Discuss	${ \text{If }}\left[ {4 - \frac{5}{{1 + \frac{1}{{3 + \frac{1}{{2 + \frac{1}{4}}}}}}}} \right]$ $x = {-b \pm \sqrt{b^2-4ac} \over 2a}$ 1] 40 minutes 2] 45 minutes 3] 48 minutes 4] 36 minutes Solution
2 Discuss	Solve : 128.43 + 30.21 + ? = 173 1] 35.66 2] 29.66 3] 43.66 4] 24.66 5] 14.36 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	The least number that must be subtracted from 63522 to make the result a perfect square is = ? 1] 18 2] 20 3] 24 4] 30 Solution
5 Discuss	*25 3.250 + 50.40 / 24.0 = ?** 1] 75 2] 80 3] 77 4] 83 Solution
6 Discuss	(? - 968) / 79 * 4 = 512 1] 10185 2] 10190 3] 11075 4] 11080 5] None of these Solution
7 Discuss	What is the value of $\frac{{\sqrt {24} + \sqrt {216} }}{{\sqrt {96} }} = ?$ 1] $2\sqrt 6$ 2] $4\sqrt 6$ 3] 2 4] 4 Solution
8 Discuss	Let 0 < x < 1, then the correct inequality is = ? 1] $x < \sqrt x < {x^2}$ 2] $\sqrt x < x < {x^2}$ 3] ${x^2} < x < \sqrt x$ 4] $\sqrt x < {x^2} < x$ Solution
9 Discuss	The value of $\frac{{{{\left( {x - y} \right)}^3} + {{\left( {y - z} \right)}^3} + {{\left( {z - x} \right)}^3}}}{{{{\left( {{x^2} - {y^2}} \right)}^3} + {{\left( {{y^2} - {z^2}} \right)}^3} + {{\left( {{z^2} - {x^2}} \right)}^3}}}$ is = ? 1] 0 2] 1 3] ${\left[ {2\left( {x + y + z} \right)} \right]^{ - 1}}$ 4] ${\left[ {\left( {x + y} \right)\left( {y + z} \right)\left( {z + x} \right)} \right]^{ - 1}}$ Solution
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