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

If 37/13 =   where x,y,z are natural member , then find x+y+z are:-

  • 1]

    6

  • 2]

    7

  • 3]

    8

  • 4]

    9

Solution
2
Discuss

If \(\frac{p}{a} + \frac{q}{b} + \frac{r}{c} = 1\)     and \(\frac{a}{p} + \frac{b}{q} + \frac{c}{r} = 0\)     where a, b, c, p, q, r are non-zero real numbers, then \(\frac{{{p^2}}}{{{a^2}}} + \frac{{{q^2}}}{{{b^2}}} + \frac{{{r^2}}}{{{c^2}}}\)    is equal to = ?

 

  • 1] 0
  • 2] 1
  • 3] 3
  • 4] 9
Solution
3
Discuss

The value of \({ \text{3}}\frac{1}{2} - \left[ {2\frac{1}{4} \div \left\{ {1\frac{1}{4} - \frac{1}{2}\left( {1\frac{1}{2} - \frac{1}{3} - \frac{1}{6}} \right)} \right\}} \right]\)       = ?

 

  • 1]

    1/2

  • 2]

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

  • 3]

    \(3\frac{1}{2}\)

  • 4]

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

Solution
4
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
5
Discuss

The simplified value of

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

4848 / 24 * 11 - 222 = ?

 

  • 1]

    200

  • 2]

    2444

  • 3]

    2000

  • 4]

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

Solution
7
Discuss

If \(\left( {a + \frac{1}{a}} \right) = 6,    then \left( {{a^4} + \frac{1}{{{a^4}}}} \right)\)   = ?

 

  • 1] 1154
  • 2] 1158
  • 3] 1160
  • 4] 1164
Solution
8
Discuss

5 - [4 - {3 - (3 - 3 - 6)}] is equal to:

  • 1] 10
  • 2] 6
  • 3] 4
  • 4] 0
Solution
9
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
10
Discuss

3.325 + 3.012 + 0.660 + 31.151 + 0.251 = ?

  • 1]

    40.019

  • 2]

    35.055

  • 3]

    37.514

  • 4]

    38.399

Solution
# Quiz