Quiz Discussion

\({ \text{If }}\left( {{n^r} - tn + \frac{1}{4}} \right)\)     be a perfect square, then the values of t are = ?

 

Course Name: Quantitative Aptitude

  • 1] ± 2
  • 2] 1, 2
  • 3] 2, 3
  • 4] ± 1
Solution
No Solution Present Yet

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# Quiz
1
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
2
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
3
Discuss

\(\left( {\frac{{785 \times 785 \times 785 + 435 \times 435 \times 435}}{{785 \times 785 + 435 \times 435 - 785 \times 435}}} \right)\)       simplifies to = ?

 

  • 1] 350
  • 2] 785
  • 3] 1220
  • 4] 1320
Solution
4
Discuss

A sum of Rs. 1360 has been divided among A, B and C such that A gets 2/3 of what B gets and B gets 1/4 of what C gets. B's share is:

 

  • 1] Rs. 120
  • 2] Rs. 160
  • 3] Rs. 240
  • 4] Rs. 300
  • 5] None of these
Solution
5
Discuss

The value of \(\frac{5}{{1\frac{7}{8}{ \text{of 1}}\frac{1}{3}}} \times \frac{{2\frac{1}{{10}}}}{{3\frac{1}{2}}}{ \text{ of 1}}\frac{1}{4} = ?\)

 

  • 1]

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

  • 2]

    0.05

  • 3]

    1

  • 4]

    2

Solution
6
Discuss

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

  • 1] 10
  • 2] 6
  • 3] 4
  • 4] 0
Solution
7
Discuss

If \(x = \sqrt 3 { \text{ + }}\sqrt 2 { \text{,}}   \) then the value of \({x^3} - \frac{1}{{{x^3}}}\)  is?

 

  • 1]

    \(10\sqrt 2 \)

  • 2]

    \(14\sqrt 2\)

  • 3]

    \(22\sqrt 2\)

  • 4]

    \(8\sqrt 2\)

Solution
8
Discuss

\({ \text{If }}x = \frac{1}{{2 + \frac{1}{2}}}{ \text{ then }}\frac{1}{x} = ?\)

 

  • 1]

    2/5

  • 2]

    5/2

  • 3]

    3/5

  • 4]

    1/2

Solution
9
Discuss

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 \(\frac{{x - y}}{{1 + xy}}\)   = ?

 

  • 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
10
Discuss

If \(\frac{1}{3} + \frac{1}{2} + \frac{1}{x}{ \text{ = 4}}\)     then x = ?

 

  • 1]

    5/16

  • 2]

    6/19

  • 3]

    18/5

  • 4]

    24/11

Solution
# Quiz