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Arithmetic Ability
Square Root And Cube Root
Quiz 2
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Q.1
If $$\sqrt 6 = 2.449{\text{,}}$$ then the value of $$\frac{{3\sqrt 2 }}{{2\sqrt 3 }}$$ is = ?
0.6122
0.8163
1.223
1.2245
Q.2
If $$\sqrt 5 = 2.236{\text{,}}$$ then the value of $$\frac{{\sqrt 5 }}{2} \, - $$ $$\frac{{10}}{{\sqrt 5 }} \, + $$ $$\sqrt {125} $$ is equal to = ?
5.59
7.826
8.944
10.062
Q.3
By what least number must 21600 be multiplied so as to make it perfect cube ?
6
10
20
30
Q.4
What is the smallest number by which 3600 be divided to make it a perfect cube ?
9
50
300
450
Q.5
If $$\sqrt 2 = 1.414{\text{,}}$$ the square root of $$\frac{{\sqrt 2 - 1}}{{\sqrt 2 + 1}}$$ is nearest to = ?
0.172
0.414
0.586
1.414
Q.6
Given that $$\sqrt 3 = 1.732{\text{,}}$$ the value of $$\frac{{3 + \sqrt 6 }}{{5\sqrt 3 - 2\sqrt {12} - \sqrt {32} + \sqrt {50} }}$$ is ?
1.414
1.732
2.551
4.899
Q.7
$$99 \times 21 - \root 3 \of ? = 1968$$
1367631
111
1366731
1367
Q.8
One-fourth of a herd of camels was seen in the forest. Twice the square root of the herd had gone to mountains and the remaining 15 camels were seen on the bank of a river. Find the total number of camels ?
32
34
35
36
Q.9
The greatest four digit perfect square number is = ?
9000
9801
9900
9981
Q.10
The least number of 4 digits which is a perfect square is = ?
1000
1016
1024
1036
Q.11
If $$3a = 4b = 6c$$ and $$a + b + c = 27\sqrt {29} {\text{,}}$$ then $$\sqrt {{a^2} + {b^2} + {c^2}} $$ is ?
$$3\sqrt {29} $$
81
87
None of these
Q.12
If 1537* is a perfect square, then the digit which replace * is = ?
2
4
5
6
Q.13
If $$\sqrt 5 = 2.236{\text{,}}$$ then the value of $$\frac{1}{{\sqrt 5 }}$$ is = ?
0.367
0.447
0.745
None of these
Q.14
If $$\sqrt {24} = 4.889,$$ the value of $$\sqrt {\frac{8}{3}} $$ is = ?
0.544
1.333
1.633
2.666
Q.15
The square root of $${\text{0}}{\text{.}}\overline {\text{4}} $$ is ?
$$0.\overline 6 $$
$$0.\overline 7 $$
$$0.\overline 8 $$
$$0.\overline 9 $$
Q.16
$$\sqrt {0.2} = ?$$
0.02
0.2
0.447
0.632
Q.17
The value of $$\sqrt {0.121} $$ is = ?
0.011
0.11
0.347
1.1
Q.18
The value of $$\sqrt {\frac{{0.16}}{{0.4}}} $$ is = ?
0.02
0.2
0.63
None of these
Q.19
$$\left( {\frac{{\sqrt {625} }}{{11}} \times \frac{{14}}{{\sqrt {25} }} \times \frac{{11}}{{\sqrt {196} }}} \right){\kern 1pt} $$ is equal to :
5
6
8
11
Q.20
$$\sqrt {\frac{{0.081 \times 0.484}}{{0.0064 \times 6.25}}} {\text{ }}$$ is equal to ?
0.9
0.99
9
99
Q.21
The value of $$\sqrt {\frac{{{{\left( {0.03} \right)}^2} + {{\left( {0.21} \right)}^2} + {{\left( {0.065} \right)}^2}}}{{{{\left( {0.003} \right)}^2} + {{\left( {0.021} \right)}^2} + {{\left( {0.0065} \right)}^2}}}} $$ is ?
0.1
10
$${10^2}$$
$${10^3}$$
Q.22
The value of $$\sqrt 2 $$ up to three places of decimal is = ?
1.410
1.412
1.413
1.414
Q.23
If $$3\sqrt 5 + \sqrt {125} = 17.88{\text{,}}$$ then what will be the value of $$\sqrt {80} $$ $$ + $$ $$6\sqrt 5 $$ = ?
13.41
20.46
21.66
22.35
Q.24
$$\sqrt {\frac{{0.0196}}{?}} = 0.2$$
0.49
0.7
4.9
None of these
Q.25
If $$\sqrt {1369} + \sqrt {0.0615 + x} $$ = 37.25, the x is equal to ?
$${10^{ - 1}}$$
$${10^{ - 2}}$$
$${10^{ - 3}}$$
None of these
Q.26
The square root of $$\left( {7 + 3\sqrt 5 } \right)$$ $$\left( {7 - 3\sqrt 5 } \right)$$ is ?
$$\sqrt 5 $$
2
4
$$3\sqrt 5 $$
Q.27
Given $$\sqrt 2 = 1.414.$$ Then the value of $$\sqrt 8 $$ $$ + $$ $$2\sqrt {32} $$ $$ - $$ $$3\sqrt {128} $$ $$ + $$ $$4\sqrt {50} $$ is = ?
8.426
8.484
8.526
8.876
Q.28
$$\sqrt {0.0169 \times ?} = 1.3$$
10
100
1000
None of these
Q.29
The approximate value of $$\frac{{3\sqrt {12} }}{{2\sqrt {28} }}$$ $$ \div $$ $$\frac{{2\sqrt {21} }}{{\sqrt {98} }}$$ is ?
1.0605
1.0727
1.6007
1.6026
Q.30
If $$\sqrt {\left( {x - 1} \right)\left( {y + 2} \right)} = 7,$$ x and y being positive whole numbers, then the values of x and y respectively are ?
8, 5
15, 12
22, 19
None of these
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