Quiz Discussion

If the sum of two numbers is 22 and the sum of their squares is 404, then the product of two numbers is = ?

• 1] 40
• 2] 44
• 3] 80
• 4] 88

$\frac{{{{\left( {469 + 174} \right)}^2} - {{\left( {469 - 174} \right)}^2}}}{{469 \times 174}}$      = ?

• 1] 2
• 2] 4
• 3] 295
• 4] 643

$\left\{ {\left( {64 - 38} \right) \times 4} \right\} \div 13 = ?$

• 1] 4
• 2] 1
• 3] 8
• 4] 2
• 5] 5

$\frac{{{{\left( {0.73} \right)}^3} + {{\left( {0.27} \right)}^3}}}{{{{\left( {0.73} \right)}^2} + {{\left( {0.27} \right)}^2} - 0.73 \times 0.27}}$      = ?

• 1] 0.27
• 2] 0.4087
• 3] 0.73
• 4] 1

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