# Quiz Discussion

The expression $$\frac{1}{{x - 1}} - \frac{1}{{x + 1}} - \frac{2}{{{x^2} + 1}} - \frac{4}{{{x^4} + 1}}$$  is equal to = ?

Course Name: Quantitative Aptitude

• 1]

$$\frac{8}{{{x^8} + 1}}$$

• 2]

$$\frac{8}{{{x^8} - 1}}$$

• 3]

$$\frac{8}{{{x^7} - 1}}$$

• 4]

$$\frac{8}{{{x^7} + 1}}$$

##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

$$\sqrt {\frac{{{{\left( {0.03} \right)}^2} + {{\left( {0.21} \right)}^2} + {{\left( {0.065} \right)}^2}}}{{{{\left( {0.003} \right)}^2} + {{\left( {0.021} \right)}^2} + {{\left( {0.0065} \right)}^2}}}}$$

• 1] 0.1
• 2] 10
• 3] 102
• 4] 103
##### Solution
2
Discuss

$$\frac{{225}}{{836}} \times \frac{{152}}{{245}} \div 1\frac{{43}}{{77}} = ?$$

• 1]

6/49

• 2]

6/11

• 3]

3/28

• 4]

1/7

• 5]

None of these

##### Solution
3
Discuss

Given that ( 12 + 22 + 32 + .......... + 102 ) = 385, then the value of ( 22 + 32 + 42 + .......... + 202 ) is equal to = ?

• 1] 770
• 2] 1155
• 3] 1540
• 4] (385)2
##### Solution
4
Discuss

Solve $${ \text{1}}\frac{4}{5} + 20 - 280 \div 25 = ?$$

• 1]

$$8\frac{1}{5}$$

• 2]

$$9\frac{1}{2}$$

• 3]

$$11\frac{1}{2}$$

• 4]

$$10\frac{3}{5}$$

• 5]

$$12\frac{1}{5}$$

##### Solution
5
Discuss

25 * 3.250 + 50.40 / 24.0 = ?

• 1]

75

• 2]

80

• 3]

77

• 4]

83

##### Solution
6
Discuss

$$\frac{{20 + 8 \times 0.5}}{{20 - ?}}{ \text{ = 12}}$$     Find the value in place of (?)

• 1] 2
• 2] 8
• 3] 18
• 4] None of these
##### Solution
7
Discuss

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
##### Solution
8
Discuss

Simplify : $$\frac{{\frac{5}{3} \times \frac{7}{{51}}{ \text{ of }}\frac{17}{5} - \frac{1}{3}}}{{\frac{2}{9} \times \frac{5}{7}{ \text{ of }}\frac{{28}}{5} - \frac{2}{3}}}{\kern 1pt} {\kern 1pt} = ?$$

• 1]

1/3

• 2]

1/6

• 3]

4

• 4]

2

##### Solution
9
Discuss

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
##### Solution
10
Discuss

When $$\left( {\frac{1}{2} - \frac{1}{4} + \frac{1}{5} - \frac{1}{6}} \right)$$ is divided by $$\left( {\frac{2}{5} - \frac{5}{9} + \frac{3}{5} - \frac{7}{{18}}} \right)$$ then the result is = ?

• 1]

$${ \text{5}}\frac{1}{{10}}$$

• 2]

$${ \text{2}}\frac{1}{{18}}$$

• 3]

$${ \text{3}}\frac{1}{6}$$

• 4]

$${ \text{3}}\frac{3}{{10}}$$

# Quiz