Quiz Discussion

One-third of Rahul's savings in National Savings Certificate is equal to one-half of his savings in Public Provident Fund. If he has Rs. 1,50,000 as total savings, how much has he saved in Public Provident Fund ?

• 1] Rs. 30,000
• 2] Rs. 50,000
• 3] Rs. 60,000
• 4] Rs. 90,000
• 5] None of these

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

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

• 1]

  $\sqrt 6$

• 2]

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

• 3]

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

• 4]

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

Evaluate : ${{ - {{\left( {4 - 6} \right)}^2} - 3\left( { - 2} \right) + \left| { - 6} \right|} \over {18 - 9 \div 3 \times 5}}$

• 1]

  $\frac{3}{8}$

• 2]

  $\frac{4}{7}$

• 3]

  $\frac{8}{3}$

• 4]

  $\frac{7}{4}$

The value (1001)3 is = ?

• 1] 1003003001
• 2] 100303001
• 3] 100300301
• 4] 103003001