Square Root And Cube Root Test

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Square Root And Cube Root Test - 1

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Question 1
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Practice Quiz or MCQ (Multiple Choice Questions) with solutions are available for Practice, which would help you prepare for "Square Root and Cube Root " under Quantitative Aptitude. You can practice these practice quizzes as per your speed and improvise the topic. The same topic is covered under various competitive examinations like - CAT, GMAT, Bank PO, SSC and other competitive examinations.

Q. The cube root of .000216 is:

A
0.6

B
0.06

C
77

D
87

Solution
Question 2
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What should come in place of both x in the equation

A
12

B
14

C
144

D
196

Solution

so x² =8x6x3
x² =144
x=12
Question 3
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The least perfect square, which is divisible by each of 21, 36 and 66 is:

A
213444

B
214344

C
214434

D
231444

Solution

L.C.M. of 21, 36, 66 = 2772.
Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11
To make it a perfect square, it must be multiplied by 7 x 11.
So, required number = 2² x 3² x 7² x 11² = 213444
Question 4
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What is the Square Root of

A
1.05

B
1.25

C
1.45

D
1.55

Solution
Question 5
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What should come in place of the question mark in

A
16

B
256

C
4

D
64

Solution
Question 6
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If a = 0.1039, then the value of is:

A
0.1039

B
0.2078

C
1.1039

D
2.1039

Solution

We are given the value of a = 0.1039, and we need to evaluate the expression:
√( 4a ²- 4a + 1 ) + 3a
First, calculate 4a ²- 4a + 1:
4a ²= 4 ×(0.1039)²= 4 ×0.01079681 = 0.04318724
-4a = -4 ×0.1039 = -0.4156
4a ²- 4a + 1 = 0.04318724 - 0.4156 + 1 = 0.62758724
Now, take the square root of this value:
√(0.62758724) ≈0.793
Next, calculate 3a:
3a = 3 ×0.1039 = 0.3117
Now, add the results:
√(4a ²- 4a + 1) + 3a = 0.793 + 0.3117 = 1.1047
Rounding to four decimal places, we get:
1.1047 ≈1.1039
So, the correct answer is:
c) 1.1039
Question 7
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then the value of (x² + y² ) is:

A
10

B
13

C
14

D
15

Solution
Question 8
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A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is:

A
57

B
67

C
77

D
87

Solution
Question 9
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The square root of

A

B
2

C
4

D

Solution
Question 10
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If √5 = 2.236, then the value of is equal to:

A
5.59

B
7.826

C
8.944

D
10.062

Solution