Quiz Discussion

The expression \(\frac{1}{{x - 1}} - \frac{1}{{x + 1}} - \frac{2}{{{x^2} + 1}} - \frac{4}{{{x^4} + 1}}\)  is equal to = ?

 

Course Name: Quantitative Aptitude

  • 1]

    \(\frac{8}{{{x^8} + 1}}\)

  • 2]

    \(\frac{8}{{{x^8} - 1}}\)

  • 3]

    \(\frac{8}{{{x^7} - 1}}\)

  • 4]

    \(\frac{8}{{{x^7} + 1}}\)

Solution
No Solution Present Yet

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# Quiz
1
Discuss

If (2a+b)/(a+4b)=3 , then find the value of (a+b)/(a+2b)

  • 1]

    10/9

  • 2]

    1/9

  • 3]

    11/7

  • 4]

    8/7

Solution
2
Discuss

Free notebooks were distributed equally among children of a class. The number of notebooks each child got was one-eighth of the number of children. Had the number of children been half, each child would have got 16 notebooks. Total how many notebooks were distributed ?

  • 1] 256
  • 2] 432
  • 3] 512
  • 4] 640
  • 5] None of these
Solution
3
Discuss

\(\sqrt {\frac{{{{\left( {0.03} \right)}^2} + {{\left( {0.21} \right)}^2} + {{\left( {0.065} \right)}^2}}}{{{{\left( {0.003} \right)}^2} + {{\left( {0.021} \right)}^2} + {{\left( {0.0065} \right)}^2}}}}\)

 

  • 1] 0.1
  • 2] 10
  • 3] 102
  • 4] 103
Solution
4
Discuss

The value of \({ \text{5}}\frac{1}{3} \div 1\frac{2}{9} \times \frac{1}{4}  \left( {10 + \frac{3}{{1 - \frac{1}{5}}}} \right)\)   = ?

 

  • 1]

    15

  • 2]

    67/25

  • 3]

    128/11

  • 4]

    128/99

Solution
5
Discuss

Simplify : \(1 - \left[ {1 - \left\{ {1 - \left( {1 - \overline {1 - 1} } \right)} \right\}} \right]\)

 

  • 1] 0
  • 2] 1
  • 3] 2
  • 4] 3
  • 5] None of these
Solution
6
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
7
Discuss

Simplify : \(\left[ {\left( {1 + \frac{1}{{10 + \frac{1}{{10}}}}} \right) \times \left( {1 + \frac{1}{{10 + \frac{1}{{10}}}}} \right) - \left( {1 - \frac{1}{{10 + \frac{1}{{10}}}}} \right) \times \left( {1 - \frac{1}{{10 + \frac{1}{{10}}}}} \right)} \right] \div \left[ {\left( {1 + \frac{1}{{10 + \frac{1}{{10}}}}} \right) + \left( {1 - \frac{1}{{10 + \frac{1}{{10}}}}} \right)} \right] = ?\)

 

  • 1]

    100/101

  • 2]

    90/101

  • 3]

    20/101

  • 4]

    101/100

Solution
8
Discuss

What number must be added to the expression 16a2 - 12a to make a perfect square ?

  • 1]

    9/4

  • 2]

    11/2

  • 3]

    13/2

  • 4]

    16

Solution
9
Discuss

If a - b = 3 and a2 + b2 = 29, find the value of ab = ?

  • 1] 10
  • 2] 12
  • 3] 15
  • 4] 18
Solution
10
Discuss

\(\frac{{{{\left( {469 + 174} \right)}^2} - {{\left( {469 - 174} \right)}^2}}}{{469 \times 174}} \)      = ?

 

  • 1] 2
  • 2] 4
  • 3] 295
  • 4] 643
Solution
# Quiz