49. The sum of first 7 odd natural numbers is
- (A) 43
- (B) 59
- (C) 49
- (D) 64
48. Which of the following number would end with digit 0?
- (A) 1212
- (B) 1222
- (C) 1242
- (D) 1202
47. Which of the following number would end with digit 1?
- (A) 4512
- (B) 4522
- (C) 4532
- (D) 4542
46. Which of the following number would end with digit 4?
- (A) 3772
- (B) 3762
- (C) 3752
- (D) 3782
45. Which of the following number would end with digit 5?
- (A) 5672
- (B) 5682
- (C) 5652
- (D) 5612
44. Which of the following number would end with digit 6?
- (A) 6662
- (B) 6672
- (C) 6682
- (D) 6692
43. Which of the following number would end with digit 9?
- (A) 7982
- (B) 7962
- (C) 7992
- (D) 7932
42. Which of the following will have 1 at its units place?
- (A) 192
- (B) 172
- (C) 182
- (D) 162
41. The unit digit of 682 is
- (A) 8
- (B) 2
- (C) 4
- (D) 6
40. Which of the following is the square of an odd number?
- (A) 256
- (B) 361
- (C) 144
- (D) 400
39. The square of 0.4 is
- (A) 1.6
- (B) 0.106
- (C) 0.16
- (D) 0.016
38. The square of 6.1 is
- (A) 35.21
- (B) 36.21
- (C) 37.21
- (D) 37.31
37. Which of the following is a square of an even number?
- (A) 144
- (B) 169
- (C) 441
- (D) 625
36. A number ending in 9 will have the unit’s place of its square as
- (A) 3
- (B) 9
- (C) 1
- (D) 6
35. Which of the following will have 4 at the units place?
- (A) 142
- (B) 622
- (C) 272
- (D) 352
34. Which of the following cannot be a perfect square?
- (a) 841
- (b) 529
- (c) 198
- (d) All of the above
33. How many numbers are there, which when squared give the result 25?
- (A) 0
- (B) 1
- (C) 2
- (D) 3