Quiz Discussion

If \(\left( {x + \frac{1}{x}} \right) = 3,\)    then \(\left( {{x^2} + \frac{1}{{{x^2}}}} \right)\)   is = ?

 

Course Name: Quantitative Aptitude

  • 1]

    10/3

  • 2]

    82/9

  • 3]

    7

  • 4]

    11

Solution
No Solution Present Yet

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# Quiz
1
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
2
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
3
Discuss

If \(\root 3 \of {{3^n}} { \text{ = 27,}}\)  then the value of n is = ?

 

  • 1] 9
  • 2] 6
  • 3] 1
  • 4] 3
Solution
4
Discuss

Supply the two missing figures in order indicated by x and y in the given equation, the fractions being in their lowest terms.

  • 1] 3, 1
  • 2] 3, 3
  • 3] 4, 1
  • 4] 5, 3
Solution
5
Discuss

Simplify : \(\frac{{\frac{5}{3} \times \frac{7}{{51}}{ \text{ of }}\frac{17}{5} - \frac{1}{3}}}{{\frac{2}{9} \times \frac{5}{7}{ \text{ of }}\frac{{28}}{5} - \frac{2}{3}}}{\kern 1pt} {\kern 1pt} = ?\)

 

  • 1]

    1/3

  • 2]

    1/6

  • 3]

    4

  • 4]

    2

Solution
6
Discuss

\(\left\{ {\left( {\sqrt {72} - \sqrt {18} } \right) \div \sqrt {12} } \right\}\)    is equal to = ?

 

  • 1]

    \(\sqrt 6\)

  • 2]

    \(\frac{{\sqrt 3 }}{2}\)

  • 3]

    \(\frac{{\sqrt 2 }}{3}\)

  • 4]

    \(\frac{{\sqrt 6 }}{2}\)

Solution
7
Discuss

If \(\left( {x + \frac{1}{x}} \right){ \text{ = 2,}}\)    then \(\left( {x - \frac{1}{x}} \right)\)   is equal to = ?

 

  • 1] 0
  • 2] 1
  • 3] 2
  • 4] 5
Solution
8
Discuss

On simplification the value of \({ \text{1}} - \frac{1}{{1 + \sqrt 2 }}{ \text{ + }}  \frac{1}{{1 - \sqrt 2 }}\)  is = ?

 

  • 1]

    \(2\sqrt 2 - 1\)

  • 2]

    \(1 - 2\sqrt 2 \)

  • 3]

    \(1 - \sqrt 2 \)

  • 4]

    \( - 2\sqrt 2 \)

Solution
9
Discuss

(? - 968) / 79 * 4 = 512

 

  • 1] 10185
  • 2] 10190
  • 3] 11075
  • 4] 11080
  • 5] None of these
Solution
10
Discuss

\(\frac{{{{\left( {a - b} \right)}^2} - {{\left( {a + b} \right)}^2}}}{{ - 4a}}{ \text{ = }}\frac{x}{y}\)     On simplifying the given equations, which of the following equations will be obtained ?

 

  • 1] xy = b
  • 2] bx = y
  • 3] ab = x
  • 4] yb = x
  • 5] ay = x
Solution
# Quiz