1. Which is the smallest three digit perfect square?
(A) 100
(B) 101
(C) 121
(D) 144
2. Which is the greatest 3-digit perfect square?
(A) 999
(B) 961
(C) 962
(D) 970
3. Which is the greatest 4-digit perfect square?
(A) 9999
(B) 9990
(C) 9800
(D) 9801
4. Which is the smallest 4-digit perfect square?
(A) 1024
(B) 1025
(C) 1000
(D) 1016
5. What will be the number of digits in the square root of 25600?
(A) 3
(B) 2
(C) 5
(D) 4
6. What will be the number of digits in the square root of 1296?
(A) 2
(B) 3
(C) 1
(D) 4
7. The square root of 12.25 is
(A) 3.5
(B) 2.5
(C) 35
(D) 25
8. What is the length of the side of a square whose are is 441 cm²?
(A) 21
(B) 22
(C) 20
(D) 12
9. What least number should be subtracted from 629 so as to get a perfect square?
(A) 4
(B) 5
(C) 6
(D) 3
10. The square root of 1.21 is
(A) 1.1
(B) 11
(C) 21
(D) 2.1
11. What is the smallest square number which is divisible by each of the numbers 6, 9 and 15?
(A) 900
(B) 810
(C) 630
(D) 720
12. The square of 1.2 is
(A) 144
(B) 1.44
(C) 630
(D) 720
13. The square root of 169 is
(A) -13
(B) 1.3
(C) -1.3
(D) 13/10
14. Which of the following is not a perfect square?
(A) 81
(B) 18
(C) 100
(D) 121
15. Which of the following is not a square number?
(A) 4
(B) 9
(C) 16
(D) 24
16. The square of 23 is :
(A) 529
(B) 526
(C) 46
(D) 429
17. The square of which of the following would be even number?
(A) 2826
(B) 7779
(C) 1057
(D) 131
18. The square of which of the following would be odd number?
(A) 431
(B) 272
(C) 1234
(D) 7928
19. Which of the following is a perfect square?
(A) 45
(B) 81
(C) 18
(D) 54
20. What will be the 'one's digit' in the square of 1234?
(A) 6
(B) 2
(C) 8
(D) 9
21. What will be the number of zeroes in the square of 400?
(A) 5
(B) 1
(C) 3
(D) 4
22. The perfect square number between 30 and 40 is:
(A) 35
(B) 39
(C) 36
(D) 32
23. Which of the following number would have digit 6 at units place?
(A) 19²
(B) 24²
(C) 25²
(D) 13²
24. Which of the following numbers would have digit 5 at units place:
(A) 95²
(B) 59²
(C) 24²
(D) 42²
25. Which of the following numbers would have digit 1 at units place?
(A) 81²
(B) 18²
(C) 54²
(D) 95²
26. How many natural numbers lie between 9² and 10²?
(A) 15
(B) 19
(C) 18
(D) 17
27. How many non square numbers lie between 11² and 12²?
(A) 21
(B) 23
(C) 22
(D) 20
28. 25 can be expressed as the sum of first ________ consecutive odd numbers.
(A) 2
(B) 5
(C) 6
(D) 3
29. How many numbers lie between square of 12 and 13?
(A) 21
(B) 23
(C) 22
(D) 24
30. The square of -9 is
(A) -81
(B) 81
(C) 18
(D) -18
31. The square root of 6400 is
(A) 80
(B) 81
(C) 32
(D) 23
32. By which smallest number 90 must be multiplied so as to make it a perfect square?
(A) 10
(B) 2
(C) 5
(D) 3
33. By which smallest number 48 must be divided so as to make it a perfect square?
(A) 2
(B) 3
(C) 6
(D) 4
34. Which smallest number should be added to 80 so as to make it a perfect square?
(A) 2
(B) 3
(C) 1
(D) 4
35. What could be the possible 'one's digit' of the square root of 625?
(A) 3
(B) 5
(C) 4
(D) 7
36. √(0.09) = ?
(A) 3
(B) 0.3
(C) 0.03
(D) 0.33
37. √(1.0816) = ?
(A) 1.04
(B) 1.286
(C) 0.904
(D) 1.35
38.
39. √(0.9) × √(1.6) = ?
(A) 0.12
(B) 1.2
(C) 0.75
(D) 12
40. Number of zeroes in the square of 400
(A) 2
(B) 4
(C) 6
(D) 8