Quiz Discussion

What number must be added to the expression 16a2 - 12a to make a perfect square ?

Course Name: Quantitative Aptitude

  • 1]

    9/4

  • 2]

    11/2

  • 3]

    13/2

  • 4]

    16

Solution
No Solution Present Yet

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# Quiz
1
Discuss

In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?

  • 1] 160
  • 2] 175
  • 3] 180
  • 4] 195
  • 5] None of these
Solution
2
Discuss

Evaluated : \({{9\left| {3 - 5} \right| - 5\left| 4 \right| \div 10} \over { - 3\left( 5 \right) - 2 \times 4 \div 2}}\)

 

  • 1]

    9/10

  • 2]

    -8/17

  • 3]

    -16/19

  • 4]

    4/7

Solution
3
Discuss

(4 / 5) × ? × (3 / 7) = (16 / 105)

  • 1]

    8/9

  • 2]

    5/7

  • 3]

    4/9

  • 4]

    3/7

Solution
4
Discuss

\(1\frac{3}{4} - 1\frac{1}{5} + 1\frac{5}{8} = ?\)

 

  • 1]

    \(2\frac{7}{{40}}\)

  • 2]

    \(3\frac{7}{{40}}\)

  • 3]

    \(9\frac{5}{8}\)

  • 4]

    \(10\frac{7}{8}\)

  • 5]

    None of these

Solution
5
Discuss

The least number that must be subtracted from 63522 to make the result a perfect square is = ?

  • 1] 18
  • 2] 20
  • 3] 24
  • 4] 30
Solution
6
Discuss

\({ \text{If }}\left[ {4 - \frac{5}{{1 + \frac{1}{{3 + \frac{1}{{2 + \frac{1}{4}}}}}}}} \right]\)  \(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)

 

  • 1] 40 minutes
  • 2] 45 minutes
  • 3] 48 minutes
  • 4] 36 minutes
Solution
7
Discuss

4848 / 24 * 11 - 222 = ?

 

  • 1]

    200

  • 2]

    2444

  • 3]

    2000

  • 4]

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

Solution
8
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
9
Discuss

If \(\left( {x + \frac{1}{x}} \right) = 3,\)    then \(\left( {{x^2} + \frac{1}{{{x^2}}}} \right)\)   is = ?

 

  • 1]

    10/3

  • 2]

    82/9

  • 3]

    7

  • 4]

    11

Solution
10
Discuss

If \(\sqrt {{ \text{4096}}}\) = 64, then the value of \(\sqrt {{ \text{40}}{ \text{.96}}}\)   + \(\sqrt {{ \text{0}}{ \text{.4096}}}\)   + \(\sqrt {{ \text{0}}{ \text{.004096}}}\)   + \(\sqrt {{ \text{0}}{ \text{.00004096}}}\)     up to two place of decimals is = ?

 

  • 1] 7.09
  • 2] 7.10
  • 3] 7.11
  • 4] 7.12
Solution
# Quiz