Quiz Discussion

If \(\left( {x - \frac{1}{x}} \right){ \text{ = }}\sqrt {21} { \text{,}} \)    then the value of \(\left( {{x^2} + \frac{1}{{{x^2}}}} \right) \left( {x + \frac{1}{x}} \right)\) is = ?

 

Course Name: Quantitative Aptitude

  • 1] 42
  • 2] 63
  • 3] 115
  • 4] 120
  • 5] 125
Solution
No Solution Present Yet

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# Quiz
1
Discuss

4848 / 24 * 11 - 222 = ?

 

  • 1]

    200

  • 2]

    2444

  • 3]

    2000

  • 4]

    \(115\frac{3}{8}\)

Solution
2
Discuss

25 * 3.250 + 50.40 / 24.0 = ?

  • 1]

    75

  • 2]

    80

  • 3]

    77

  • 4]

    83

Solution
3
Discuss

Solve \({ \text{1}}\frac{4}{5} + 20 - 280 \div 25 = ?\)

 

  • 1]

    \(8\frac{1}{5}\)

  • 2]

    \(9\frac{1}{2}\)

  • 3]

    \(11\frac{1}{2}\)

  • 4]

    \(10\frac{3}{5}\)

  • 5]

    \(12\frac{1}{5}\)

Solution
4
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
5
Discuss

The square root of \(\frac{{0.342 \times 0.684}}{{0.000342 \times 0.000171}} = ?\)

 

  • 1] 250
  • 2] 2500
  • 3] 2000
  • 4] 4000
Solution
6
Discuss

Given that ( 12 + 22 + 32 + .......... + 102 ) = 385, then the value of ( 22 + 32 + 42 + .......... + 202 ) is equal to = ?

  • 1] 770
  • 2] 1155
  • 3] 1540
  • 4] (385)2
Solution
7
Discuss

\(\frac{1}{{1 + {2^{a - b}}}} + \frac{1}{{1 + {2^{b - a}}}}\)     is equal to = ?

 

  • 1] a - b
  • 2] b - a
  • 3] 1
  • 4] 0
Solution
8
Discuss

If \(\left( {{a^4} + \frac{1}{{{a^4}}}} \right){ \text{ = 1154,}}\)     then the value of \(\left( {{a^3} + \frac{1}{{{a^3}}}} \right)\)   is = ?

 

  • 1] 198
  • 2] 200
  • 3] 216
  • 4] None of these
Solution
9
Discuss

The value (1001)3 is = ?

  • 1] 1003003001
  • 2] 100303001
  • 3] 100300301
  • 4] 103003001
Solution
10
Discuss

The value of \(\frac{{\sqrt {80} - \sqrt {112} }}{{\sqrt {45} - \sqrt {63} }} = ?\)

 

  • 1]

    3/4

  • 2]

    \(1\frac{3}{4}\)

  • 3]

    \(1\frac{1}{3}\)

  • 4]

    \(1\frac{7}{9}\)

Solution
# Quiz