Quiz Discussion

The simplest value of \(\left( {\frac{1}{{\sqrt 9 - \sqrt 8 }} - \frac{1}{{\sqrt 8 - \sqrt 7 }} + \frac{1}{{\sqrt 7 - \sqrt 6 }} - \frac{1}{{\sqrt 6 - \sqrt 5 }}} \right)\)          is = ?

 

Course Name: Quantitative Aptitude

  • 1]

    \(3 - \sqrt 5 \)

  • 2]

    3

  • 3]

    \(\sqrt 5 \)

  • 4]

    \(\sqrt 5 - 3\)

Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

Solve 4376 + 3209 - 1784 + 97 = 3125 + ?

  • 1] 2713
  • 2] 2743
  • 3] 2773
  • 4] 2793
  • 5] 2737
Solution
3
Discuss

The price of 2 sarees and 4 shirts is Rs. 1600. With the same money one can buy 1 saree and 6 shirts. If one wants to buy 12 shirts, how much shall he have to pay ?

  • 1] Rs. 1200
  • 2] Rs. 2400
  • 3] Rs. 4800
  • 4] Cannot be determined
  • 5] None of these
Solution
4
Discuss

3/5 of 4/7 of 5/9 of 21/24 of 504 = ?

  • 1]

    63

  • 2]

    39

  • 3]

    96

  • 4]

    84

Solution
5
Discuss

1559.95 - 7.99 × 24.96 - ?2 = 1154

  • 1] 14
  • 2] 24
  • 3] 32
  • 4] 18
  • 5] 8
Solution
6
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
7
Discuss

The value of \(\frac{{{{\left( {x - y} \right)}^3} + {{\left( {y - z} \right)}^3} + {{\left( {z - x} \right)}^3}}}{{{{\left( {{x^2} - {y^2}} \right)}^3} + {{\left( {{y^2} - {z^2}} \right)}^3} + {{\left( {{z^2} - {x^2}} \right)}^3}}}\)       is = ?

 

  • 1]

    0

  • 2]

    1

  • 3]

    \({\left[ {2\left( {x + y + z} \right)} \right]^{ - 1}}\)

  • 4]

    \({\left[ {\left( {x + y} \right)\left( {y + z} \right)\left( {z + x} \right)} \right]^{ - 1}}\)

Solution
8
Discuss

If \(\left( {x - \frac{1}{x}} \right){ \text{ = }}\sqrt {21} { \text{,}} \)    then the value of \(\left( {{x^2} + \frac{1}{{{x^2}}}} \right) \left( {x + \frac{1}{x}} \right)\) is = ?

 

  • 1] 42
  • 2] 63
  • 3] 115
  • 4] 120
  • 5] 125
Solution
9
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
10
Discuss

One-third of Rahul's savings in National Savings Certificate is equal to one-half of his savings in Public Provident Fund. If he has Rs. 1,50,000 as total savings, how much has he saved in Public Provident Fund ?

  • 1] Rs. 30,000
  • 2] Rs. 50,000
  • 3] Rs. 60,000
  • 4] Rs. 90,000
  • 5] None of these
Solution
# Quiz