Square Root of a Number
The square root of a number is that number , the product of which by itself , is equal to the given number.
Important Example for Square Root and Cube Root
Example 1: The square root of x is denoted by
Thus etc.
Square Root of Factorization: When a given no is perfect square we resolve it in to prime factors and take the product of prime factors. choosing one out of every pair
Example 2: Given that = 3.8729 evaluate
Solution:
=
= =
= 4+3.8729 = 7.8729
Example 3: if = 37 find the value of
Solution: Given expression is ,
= = 3.7+0.37+0.037 = 4.107
Cube Root of a Number: The cube root of a number x is the number whose cube is x . we denote cube root of x by
Cube Root of Factorization: Resolve the given number in to prime factor and take the product of prime number .
thus =7
Square and Cube Root Previous Year Questions
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This test will cover Square, Cube, Indices and Surds syllabus of Bank Clerk Exam.
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Question 1 of 28
1. Question
1 points= ?
Correct
Given expression are :
= ?
=
=
Incorrect
Given expression are :
= ?
=
=

Question 2 of 28
2. Question
1 pointsCorrect
Incorrect

Question 3 of 28
3. Question
1 points= ?
Correct
and last digit of number is 4
Incorrect
and last digit of number is 4

Question 4 of 28
4. Question
1 pointsCorrect
Incorrect
?=10 
Question 5 of 28
5. Question
1 pointsCorrect
= 56  17 = 39
Incorrect
= 56  17 = 39

Question 6 of 28
6. Question
1 pointsIf is subtracted from the square of a number, the answer so obtained is 1893. What is the number?
Correct
Incorrect
1893 + 29791 = 31684

Question 7 of 28
7. Question
1 pointsCorrect
Incorrect

Question 8 of 28
8. Question
1 pointsCorrect
Incorrect
7 ( 625 + 450 + 324)
= 9793

Question 9 of 28
9. Question
1 pointsIf is subtracted from the square of a number, the answer so obtained is 10906. So that the number number is?
Correct
Incorrect

Question 10 of 28
10. Question
1 points[Bank PO 1990]
Correct
Incorrect

Question 11 of 28
11. Question
1 pointsCorrect
Incorrect

Question 12 of 28
12. Question
1 points[Hotel Mgt 1993]
Correct
Incorrect

Question 13 of 28
13. Question
1 pointsCorrect
Incorrect

Question 14 of 28
14. Question
1 pointsCorrect
Incorrect

Question 15 of 28
15. Question
1 pointsCorrect
Incorrect

Question 16 of 28
16. Question
1 points+ = ?
Correct
+ = ?
=>56 + 64 = 120
Incorrect
+ = ?
=>56 + 64 = 120

Question 17 of 28
17. Question
1 pointsCorrect
= 1000000  64000000 = 360000
= 600
Incorrect
= 1000000  64000000 = 360000
= 600

Question 18 of 28
18. Question
1 pointsCorrect
Incorrect

Question 19 of 28
19. Question
1 pointsis equal to ?
Correct
Incorrect

Question 20 of 28
20. Question
1 pointsCorrect
Incorrect
= 4040559 = 3481

Question 21 of 28
21. Question
1 points1617 + 2561 =
Correct
Incorrect
4178 = 1369 +
= 2089

Question 22 of 28
22. Question
1 pointsWhat is the least number to be added to 7000 to make it a perfect square?
Correct
Incorrect
Number =  7000= 7056  7000 = 56

Question 23 of 28
23. Question
1 pointsIf is added to the square of a number, the answer so obtained is 28898. What is the number?
Correct
Incorrect
Number =

Question 24 of 28
24. Question
1 pointsWhich number should replace both the questions marks (?) in the following equation?
Correct
Incorrect
=>
=

Question 25 of 28
25. Question
1 pointsCorrect
Incorrect
? = 9

Question 26 of 28
26. Question
1 pointsCorrect
Incorrect
= 479.61

Question 27 of 28
27. Question
1 pointsCorrect
Incorrect
? = 77

Question 28 of 28
28. Question
1 pointsCorrect
Incorrect
Square and Cube Root Video Lecture
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