# Quiz Discussion

If $$\left( {x + \frac{1}{x}} \right) = 3,$$    then $$\left( {{x^2} + \frac{1}{{{x^2}}}} \right)$$   is = ?

Course Name: Quantitative Aptitude

• 1]

10/3

• 2]

82/9

• 3]

7

• 4]

11

##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

(4 / 5) × ? × (3 / 7) = (16 / 105)

• 1]

8/9

• 2]

5/7

• 3]

4/9

• 4]

3/7

##### Solution
2
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
3
Discuss

What is $$\frac{{\frac{7}{8} \times \frac{7}{8} + \frac{5}{6} \times \frac{5}{6} + \frac{7}{8} \times \frac{5}{3}}}{{\frac{7}{8} \times \frac{7}{8} - \frac{5}{6} \times \frac{5}{6}}}$$     equal to ?

• 1]

41/24

• 2]

1/24

• 3]

41

• 4]

None of these

##### Solution
4
Discuss

5 - [4 - {3 - (3 - 3 - 6)}] is equal to:

• 1] 10
• 2] 6
• 3] 4
• 4] 0
##### Solution
5
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
6
Discuss

If 547.527/0.0082   then the value of 547527/82   is = ?

• 1]

10x

• 2]

100x

• 3]

x/100

• 4]

x/10

##### Solution
7
Discuss

$$\frac{{38 \times 38 \times 38 + 34 \times 34 \times 34 + 28 \times 28 \times 28 - 38 \times 34 \times 84}}{{38 \times 38 + 34 \times 34 + 28 \times 28 - 38 \times 34 - 34 \times 28 - 38 \times 28}}$$           is equal to = ?

• 1] 24
• 2] 32
• 3] 44
• 4] 100
##### Solution
8
Discuss

A body of 7300 troops is formed of 4 battalions so that 1/2 of the first, 2/3 of the second, 3/4 of the third and 4/5 of the fourth are all composed of the same number of men. How many men are there in the second battalion?

• 1] 1500
• 2] 1600
• 3] 1800
• 4] 2400
##### Solution
9
Discuss

To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present ?

• 1] 10
• 2] 35
• 3] 62.5
• 4] Cannot be determined
• 5] None of these
##### Solution
10
Discuss

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]

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

# Quiz