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

\(\frac{{225}}{{836}} \times \frac{{152}}{{245}} \div 1\frac{{43}}{{77}} = ?\)

 

  • 1]

    6/49

  • 2]

    6/11

  • 3]

    3/28

  • 4]

    1/7

  • 5]

    None of these

Solution
2
Discuss

Find the value of \(\sqrt {248 + \sqrt {52 + \sqrt {144} } } = ?\)

 

  • 1]

    -16

  • 2]

    \(\pm 16\)

  • 3]

    16

  • 4]

    16.2

Solution
3
Discuss

If \(\root 3 \of {{3^n}} { \text{ = 27,}}\)  then the value of n is = ?

 

  • 1] 9
  • 2] 6
  • 3] 1
  • 4] 3
Solution
4
Discuss

If \(\frac{p}{a} + \frac{q}{b} + \frac{r}{c} = 1\)     and \(\frac{a}{p} + \frac{b}{q} + \frac{c}{r} = 0\)     where a, b, c, p, q, r are non-zero real numbers, then \(\frac{{{p^2}}}{{{a^2}}} + \frac{{{q^2}}}{{{b^2}}} + \frac{{{r^2}}}{{{c^2}}}\)    is equal to = ?

 

  • 1] 0
  • 2] 1
  • 3] 3
  • 4] 9
Solution
5
Discuss

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

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

Number of digits in the square root of 62478078 is = ?

  • 1] 4
  • 2] 5
  • 3] 6
  • 4] 3
Solution
7
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
8
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
9
Discuss

If the expression \({ \text{2}}\frac{1}{2}{ \text{ of }}\frac{3}{4} \times \frac{1}{2} \div \frac{3}{2} + \frac{1}{2} \div \frac{3}{2}\left[ {\frac{2}{3} - \frac{1}{2}{ \text{ of }}\frac{2}{3}} \right]\) is simplified, we get -

 

  • 1]

    1/2

  • 2]

    7/8

  • 3]

    \({ \text{1}}\frac{5}{8}\)

  • 4]

    \({ \text{2}}\frac{3}{5}\)

Solution
10
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
# Quiz