Evaluate : $\frac{{\left( {923 - 347} \right)}}{?} = 32$

• 1] 35
• 2] 20
• 3] 18
• 4] 15
• 5] 40

Simplify : ${{{5 \over 3} \times {7 \over {51}}{ \text{ of }}{{17} \over 5} - {1 \over 3}} \over {{2 \over 9} \times {5 \over 7}{ \text{ of }}{{28} \over 5} - {2 \over 3}}}$

• 1]

  1/2

• 2]

  4

• 3]

  2

• 4]

  1/4

If $\frac{{x + 1}}{{x - 1}}{ \text{ = }}\frac{a}{b}$    and $\frac{{1 - y}}{{1 + y}}{ \text{ = }}\frac{b}{a}{ \text{,}}$ then the value of $\frac{{x - y}}{{1 + xy}}$   = ?

• 1]

  $\frac{{2ab}}{{{a^2} - {b^2}}}$

• 2]

  $\frac{{{a^2} - {b^2}}}{{2ab}}$

• 3]

  $\frac{{{a^2} + {b^2}}}{{2ab}}$

• 4]

  $\frac{{{a^2} - {b^2}}}{{ab}}$

Simplify : $\left[ {\left( {1 + \frac{1}{{10 + \frac{1}{{10}}}}} \right) \times \left( {1 + \frac{1}{{10 + \frac{1}{{10}}}}} \right) - \left( {1 - \frac{1}{{10 + \frac{1}{{10}}}}} \right) \times \left( {1 - \frac{1}{{10 + \frac{1}{{10}}}}} \right)} \right] \div \left[ {\left( {1 + \frac{1}{{10 + \frac{1}{{10}}}}} \right) + \left( {1 - \frac{1}{{10 + \frac{1}{{10}}}}} \right)} \right] = ?$

• 1]

  100/101

• 2]

  90/101

• 3]

  20/101

• 4]

  101/100

$\frac{3}{2} \times \frac{{11}}{5} \div \left( {\frac{{25}}{{44}} \times \frac{{11}}{5}} \right) \div \frac{{33}}{{15}} = ?$

• 1]

  1/2

• 2]

  2/3

• 3]

  126/125

• 4]

  $5\frac{{101}}{{125}}$

• 5]

  None of these