Quiz Discussion

If \(\frac{{x + 1}}{{x - 1}}{ \text{ = }}\frac{a}{b}  \)    and \(\frac{{1 - y}}{{1 + y}}{ \text{ = }}\frac{b}{a}{ \text{,}} \) then the value of \(\frac{{x - y}}{{1 + xy}}\)   = ?

 

Course Name: Quantitative Aptitude

  • 1]

    \(\frac{{2ab}}{{{a^2} - {b^2}}}\)

  • 2]

    \(\frac{{{a^2} - {b^2}}}{{2ab}}\)

  • 3]

    \(\frac{{{a^2} + {b^2}}}{{2ab}}\)

  • 4]

    \(\frac{{{a^2} - {b^2}}}{{ab}}\)

Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

The value of \(\frac{{25 - 5\left[ {2 + 3\left\{ {2 - 2\left( {5 - 3} \right) + 5} \right\} - 10} \right]}}{4} = ?\)

 

  • 1] 5
  • 2] 23.25
  • 3] 23.75
  • 4] 25
Solution
3
Discuss

Simplify : \({ \text{10}}\frac{1}{8}{ \text{ of }}\frac{{12}}{{15}} \div \frac{{35}}{{36}}{ \text{ of }}\frac{{20}}{{49}}\)

 

  • 1]

    \(17\frac{5}{{12}}\)

  • 2]

    \(17\frac{8}{{17}}\)

  • 3]

    \(20\frac{3}{{25}}\)

  • 4]

    \(20\frac{{103}}{{250}}\)

Solution
4
Discuss

Simplify : \({{{5 \over 3} \times {7 \over {51}}{ \text{ of }}{{17} \over 5} - {1 \over 3}} \over {{2 \over 9} \times {5 \over 7}{ \text{ of }}{{28} \over 5} - {2 \over 3}}}\)

 

  • 1]

    1/2

  • 2]

    4

  • 3]

    2

  • 4]

    1/4

Solution
5
Discuss

1 - [5 - {2 + (- 5 + 6 - 2) 2}] is equal to:

  • 1] -4
  • 2] 2
  • 3] 0
  • 4] 2
Solution
6
Discuss

\(\frac{{225}}{{836}} \times \frac{{152}}{{245}} \div 1\frac{{43}}{{77}} = ?\)

 

  • 1]

    6/49

  • 2]

    6/11

  • 3]

    3/28

  • 4]

    1/7

  • 5]

    None of these

Solution
7
Discuss

Find the value of \(\sqrt {4 + \sqrt {44 + \sqrt {10000} } } \)

 

  • 1] 12
  • 2] 8
  • 3] 4
  • 4] -4
Solution
8
Discuss

A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ?

  • 1] 45
  • 2] 60
  • 3] 75
  • 4] 90
  • 5] None of these
Solution
9
Discuss

Simplify : \(1 + {2 \over {1 + {3 \over {1 + {4 \over 5}}}}}\)

 

  • 1]

    7/4

  • 2]

    4/7

  • 3]

    7/5

  • 4]

    3/7

Solution
10
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
# Quiz