Quiz Discussion

The square root of \(\left( {7 + 3\sqrt 5 } \right)  \left( {7 - 3\sqrt 5 } \right)\)   is

 

Course Name: Quantitative Aptitude

  • 1]

    \(\sqrt 5 \)

  • 2]

    2

  • 3]

    4

  • 4]

    \(3\sqrt 5 \)

Solution
No Solution Present Yet

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# Quiz
1
Discuss

If \(3\sqrt 5 + \sqrt {125} \)   = 17.88, then what will be the value of \(\sqrt {80} + 6\sqrt 5 ?\)

 

  • 1] 13.41
  • 2] 20.46
  • 3] 21.66
  • 4] 22.35
Solution
2
Discuss

\({\left( {15} \right)^2} + {\left( {18} \right)^2} - 20 = \sqrt ? \)

 

  • 1] 22
  • 2] 23
  • 3] 529
  • 4] 279841
  • 5] None of these
Solution
3
Discuss

R is a positive number. It is multiplied by 8 and then squared. The square is now divided by 4 and the square root is taken. The result of the square root is Q. What is the value of Q ?

  • 1] 3R
  • 2] 4R
  • 3] 7R
  • 4] 9R
Solution
4
Discuss

Solved \( \root 4 \of {{{\left( {625} \right)}^3}} = ?\)

 

  • 1]

    \( \root 3 \of {1875} \)

  • 2]

    25

  • 3]

    125

  • 4]

    None of these

Solution
5
Discuss

\(\sqrt {\frac{{16}}{{25}}} \times \sqrt {\frac{?}{{25}}} \times \frac{{16}}{{25}} = \frac{{256}}{{625}}\)

 

  • 1] 5
  • 2] 8
  • 3] 16
  • 4] None of these
Solution
6
Discuss

The square root of 123454321 is = ?

  • 1] 111111
  • 2] 12341
  • 3] 11111
  • 4] 11211
Solution
7
Discuss

The cube root of .000216 is:

  • 1] .6
  • 2] .06
  • 3] 77
  • 4] 87
Solution
8
Discuss

\({1.5^2} \times \sqrt {0.0225} = ?\)

 

  • 1] 0.0375
  • 2] 0.3375
  • 3] 3.275
  • 4] 32.75
Solution
9
Discuss

How many perfect squares lie between 120 and 300 ?

  • 1] 5
  • 2] 6
  • 3] 7
  • 4] 8
Solution
10
Discuss

\(\frac{1}{{\left( {\sqrt 9 - \sqrt 8 } \right)}} -   \frac{1}{{\left( {\sqrt 8 - \sqrt 7 } \right)}} +   \frac{1}{{\left( {\sqrt 7 - \sqrt 6 } \right)}} -   \frac{1}{{\left( {\sqrt 6 - \sqrt 5 } \right)}} +   \frac{1}{{\left( {\sqrt 5 - \sqrt 4 } \right)}}\)   is equal to ?

 

  • 1]

    0

  • 2]

    1/3

  • 3]

    1

  • 4]

    5

Solution
# Quiz