Quiz Discussion

The approximate value of \(\frac{{3\sqrt {12} }}{{2\sqrt {28} }} \div \frac{{2\sqrt {21} }}{{\sqrt {98} }}\)  is ?

• 1] 1.0605
• 2] 1.0727
• 3] 1.6007
• 4] 1.6026

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

• 1] 0.0375
• 2] 0.3375
• 3] 3.275
• 4] 32.75

Find the cube root of 2744.

• 1]

  14

• 2]

  13

• 3]

  12

• 4]

  11

Given that \(\sqrt {13} = 3.605\)   and \(\sqrt {130} = 11.40\)  . find the value of \(\sqrt {1.30} \)  + \(\sqrt {1300}\)  + \(\sqrt {0.0130} \)   = ?

• 1] 36.164
• 2] 36.304
• 3] 37.164
• 4] 37.304

If ​=.0026, the square root of 67,60,000 is:

• 1]

  1/26

• 2]

  26

• 3]

  260

• 4]

  2600

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

\(\sqrt {0.2} = ?\)

• 1] 0.02
• 2] 0.2
• 3] 0.447
• 4] 0.632

\(\sqrt {1.5625} = ?\)

• 1] 1.05
• 2] 1.25
• 3] 1.45
• 4] 1.55

If \(a = \frac{{\sqrt 5 + 1}}{{\sqrt 5 - 1}}   \) and \(b = \frac{{\sqrt 5 - 1}}{{\sqrt 5 + 1}},\)   the value of \(\left( {\frac{{{a^2} + ab + {b^2}}}{{{a^2} - ab + {b^2}}}} \right)\)   is ?

• 1]

  3/4

• 2]

  4/3

• 3]

  3/5

• 4]

  5/3

\(1728 \div \root 3 \of {262144} \times ? - 288\)      = 4491

• 1] 148
• 2] 156
• 3] 173
• 4] 177