Quiz Discussion

(9.0 / 2 * 27 / 9 ) / (18/7.5 * 5.0 / 4) = ?

• 1]

  5.5

• 2]

  4.0

• 3]

  4.5

• 4]

  3.0

Assume that $\sqrt {13}$ = 3.605(approximately) and $\sqrt {130}$  = 11.40(approximately) Find the value of: $\sqrt {1.3}$ + $\sqrt {1300}$  + $\sqrt {0.013}$

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

$1 + \frac{1}{2} + \frac{1}{4} + \frac{1}{7} + \frac{1}{{14}} + \frac{1}{{28}}$     is equal to = ?

• 1] 2
• 2] 2.5
• 3] 3
• 4] 3.5

A sum of Rs. 1360 has been divided among A, B and C such that A gets 2/3 of what B gets and B gets 1/4 of what C gets. B's share is:

• 1] Rs. 120
• 2] Rs. 160
• 3] Rs. 240
• 4] Rs. 300
• 5] None of these

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]

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