Quiz Discussion

1559.95 - 7.99 × 24.96 - ?2 = 1154

• 1] 14
• 2] 24
• 3] 32
• 4] 18
• 5] 8

In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?

• 1] 160
• 2] 175
• 3] 180
• 4] 195
• 5] None of these

If $x = \sqrt 3 { \text{ + }}\sqrt 2 { \text{,}}$ then the value of ${x^3} - \frac{1}{{{x^3}}}$  is?

• 1]

  $10\sqrt 2$

• 2]

  $14\sqrt 2$

• 3]

  $22\sqrt 2$

• 4]

  $8\sqrt 2$

${{{{(469 + 174)}^2} - {{(469 - 174)}^2}} \over {(469 \times 174)}} = ?$

• 1] 1
• 2] 4
• 3] 295
• 4] 643

If $\frac{p}{a} + \frac{q}{b} + \frac{r}{c} = 1$     and $\frac{a}{p} + \frac{b}{q} + \frac{c}{r} = 0$     where a, b, c, p, q, r are non-zero real numbers, then $\frac{{{p^2}}}{{{a^2}}} + \frac{{{q^2}}}{{{b^2}}} + \frac{{{r^2}}}{{{c^2}}}$    is equal to = ?

• 1] 0
• 2] 1
• 3] 3
• 4] 9