# Quiz Discussion

If $$\left( {a + \frac{1}{a}} \right) = 6, then \left( {{a^4} + \frac{1}{{{a^4}}}} \right)$$   = ?

Course Name: Quantitative Aptitude

• 1] 1154
• 2] 1158
• 3] 1160
• 4] 1164
##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

The value of $$\frac{{\sqrt {80} - \sqrt {112} }}{{\sqrt {45} - \sqrt {63} }} = ?$$

• 1]

3/4

• 2]

$$1\frac{3}{4}$$

• 3]

$$1\frac{1}{3}$$

• 4]

$$1\frac{7}{9}$$

##### Solution
2
Discuss

$$\left( {\frac{{785 \times 785 \times 785 + 435 \times 435 \times 435}}{{785 \times 785 + 435 \times 435 - 785 \times 435}}} \right)$$       simplifies to = ?

• 1] 350
• 2] 785
• 3] 1220
• 4] 1320
##### Solution
3
Discuss

The least number that must be subtracted from 63522 to make the result a perfect square is = ?

• 1] 18
• 2] 20
• 3] 24
• 4] 30
##### Solution
4
Discuss

Evaluate : $${{ - {{\left( {4 - 6} \right)}^2} - 3\left( { - 2} \right) + \left| { - 6} \right|} \over {18 - 9 \div 3 \times 5}}$$

• 1]

$$\frac{3}{8}$$

• 2]

$$\frac{4}{7}$$

• 3]

$$\frac{8}{3}$$

• 4]

$$\frac{7}{4}$$

##### Solution
5
Discuss

$$4\frac{4}{5} \div 6\frac{2}{5} = ?$$

• 1]

3/4

• 2]

5/7

• 3]

5/8

• 4]

7/11

• 5]

None of these

##### Solution
6
Discuss

The cost of 5 pendants and 8 chains is Rs. 145785. What would be the cost of 15 pendants and 24 chains ?

• 1] Rs. 325285
• 2] Rs. 439355
• 3] Rs. 550000
• 4] Cannot be determined
• 5] None of these
##### Solution
7
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
8
Discuss

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

• 1]

10/3

• 2]

82/9

• 3]

7

• 4]

11

##### Solution
9
Discuss

Solve 14 × 627 ÷ $$\sqrt {\left( {1089} \right)}$$   = (?)3 + 141

• 1] 5√5
• 2] (125)2
• 3] 25
• 4] 5
• 5] None of these
##### Solution
10
Discuss

$$\left( {x + \frac{1}{x}} \right)\left( {x - \frac{1}{x}} \right)\left( {{x^2} + \frac{1}{{{x^2}}} - 1} \right)\left( {{x^2} + \frac{1}{{{x^2}}} + 1} \right)$$   is equal to ?

• 1]

$${x^6} - \frac{1}{{{x^6}}}$$

• 2]

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

• 3]

$${x^6} + \frac{1}{{{x^6}}}$$

• 4]

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

# Quiz