Quiz Discussion

$\left\{ {\left( {\sqrt {72} - \sqrt {18} } \right) \div \sqrt {12} } \right\}$    is equal to = ?

• 1]

  $\sqrt 6$

• 2]

  $\frac{{\sqrt 3 }}{2}$

• 3]

  $\frac{{\sqrt 2 }}{3}$

• 4]

  $\frac{{\sqrt 6 }}{2}$

3/5 of 4/7 of 5/9 of 21/24 of 504 = ?

• 1]

  63

• 2]

  39

• 3]

  96

• 4]

  84

There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:

• 1] 20
• 2] 80
• 3] 100
• 4] 200
• 5] None of these

The difference of ${ \text{1}}\frac{3}{{16}}$ and its reciprocal is equal to = ?

• 1]

  $1\frac{1}{8}$

• 2]

  4/3

• 3]

  15/16

• 4]

  None of these

( √5 – 2)^2 = x – √80

• 1]

  9

• 2]

  7

• 3]

  6

• 4]

  10