Quiz Discussion

If \(3a = 4b = 6c   \)  and \(a + b + c = 27\sqrt {29} { \text{,}}   \) then\( \sqrt {{a^2} + {b^2} + {c^2}} \)is ?

 

Course Name: Quantitative Aptitude

  • 1]

    \(3\sqrt {29} \)

  • 2]

    81

  • 3]

    87

  • 4]

    None of these

Solution
No Solution Present Yet

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# Quiz
1
Discuss

If √x+x/y  = x√x/y  where x and y are positive real numbers, then y is equal to ?

 

  • 1]

    x + 1

  • 2]

    x - 1

  • 3]

    x2 + 1

  • 4]

    x2 - 1

Solution
2
Discuss

The smallest natural number which is a perfect square and which ends in 3 identical digits lies between ?

  • 1] 1000 and 2000
  • 2] 2000 and 3000
  • 3] 3000 and 4000
  • 4] 4000 and 5000
Solution
3
Discuss

Which smallest number must be added to 710 so that the sum is a perfect cube ?

  • 1] 11
  • 2] 19
  • 3] 21
  • 4] 29
Solution
4
Discuss

What is the least number to be added to 7700 to make it a perfect square ?

  • 1] 77
  • 2] 98
  • 3] 131
  • 4] 221
  • 5] None of these
Solution
5
Discuss

If a = 0.1039, then the value of \(\sqrt {4{a^2} - 4a + 1} + 3a\)     is:

 

  • 1] 0.1039
  • 2] 0.2078
  • 3] 1.1039
  • 4] 2.1039
Solution
6
Discuss

The least number of 4 digits which is a perfect square is = ?

  • 1] 1000
  • 2] 1016
  • 3] 1024
  • 4] 1036
Solution
7
Discuss

If \(a = \frac{{\sqrt 3 + \sqrt 2 }}{{\sqrt 3 - \sqrt 2 }},   b = \frac{{\sqrt 3 - \sqrt 2 }}{{\sqrt 3 + \sqrt 2 }}\)   then the value of \({a^2} + {b^2}\)   would be = ?

 

  • 1] 10
  • 2] 98
  • 3] 99
  • 4] 100
Solution
8
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
9
Discuss

The least perfect square number divisible by 3, 4, 5, 6 and 8 is = ?

  • 1] 900
  • 2] 1200
  • 3] 2500
  • 4] 3600
Solution
10
Discuss

1250 oranges were distributed among a group of girls of a class. Each girl got twice as many oranges as the number of girls in that group. The number of girls in the group was = ?

  • 1] 25
  • 2] 45
  • 3] 50
  • 4] 100
Solution
# Quiz