# Quiz Discussion

The square root of $$\left( {7 + 3\sqrt 5 } \right) \left( {7 - 3\sqrt 5 } \right)$$   is

Course Name: Quantitative Aptitude

• 1]

$$\sqrt 5$$

• 2]

2

• 3]

4

• 4]

$$3\sqrt 5$$

##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

If $$3\sqrt 5 + \sqrt {125}$$   = 17.88, then what will be the value of $$\sqrt {80} + 6\sqrt 5 ?$$

• 1] 13.41
• 2] 20.46
• 3] 21.66
• 4] 22.35
##### Solution
2
Discuss

$${\left( {15} \right)^2} + {\left( {18} \right)^2} - 20 = \sqrt ?$$

• 1] 22
• 2] 23
• 3] 529
• 4] 279841
• 5] None of these
##### Solution
3
Discuss

R is a positive number. It is multiplied by 8 and then squared. The square is now divided by 4 and the square root is taken. The result of the square root is Q. What is the value of Q ?

• 1] 3R
• 2] 4R
• 3] 7R
• 4] 9R
##### Solution
4
Discuss

Solved $$\root 4 \of {{{\left( {625} \right)}^3}} = ?$$

• 1]

$$\root 3 \of {1875}$$

• 2]

25

• 3]

125

• 4]

None of these

##### Solution
5
Discuss

$$\sqrt {\frac{{16}}{{25}}} \times \sqrt {\frac{?}{{25}}} \times \frac{{16}}{{25}} = \frac{{256}}{{625}}$$

• 1] 5
• 2] 8
• 3] 16
• 4] None of these
##### Solution
6
Discuss

The square root of 123454321 is = ?

• 1] 111111
• 2] 12341
• 3] 11111
• 4] 11211
##### Solution
7
Discuss

The cube root of .000216 is:

• 1] .6
• 2] .06
• 3] 77
• 4] 87
##### Solution
8
Discuss

$${1.5^2} \times \sqrt {0.0225} = ?$$

• 1] 0.0375
• 2] 0.3375
• 3] 3.275
• 4] 32.75
##### Solution
9
Discuss

How many perfect squares lie between 120 and 300 ?

• 1] 5
• 2] 6
• 3] 7
• 4] 8
##### Solution
10
Discuss

$$\frac{1}{{\left( {\sqrt 9 - \sqrt 8 } \right)}} - \frac{1}{{\left( {\sqrt 8 - \sqrt 7 } \right)}} + \frac{1}{{\left( {\sqrt 7 - \sqrt 6 } \right)}} - \frac{1}{{\left( {\sqrt 6 - \sqrt 5 } \right)}} + \frac{1}{{\left( {\sqrt 5 - \sqrt 4 } \right)}}$$   is equal to ?

• 1]

0

• 2]

1/3

• 3]

1

• 4]

5

# Quiz