51. Arjun is twice as old as Shriya. Five years ago his age was three times Shriya’s age. Find their present ages.
- 10 years, 20 years.
- 5 years, 10 years
- 15 years, 30 years
- 12 years, 24 years
52. The diagonals of a rhombus are 7.5 cm and 12 cm. Find its area?
- 45 cm2
- 90 cm2
- 35 cm2
- 80 cm2
53. The surface area of a sphere of radius 14 cm is :
- 2464 cm2
- 2468 cm2
- 2064 cm2
- 2664 cm2
54. A right circular cone whose slant height is 10 cm and base radius is 7 cm. The curved surface area will be :
- 240 cm2
- 200 cm2
- 220 cm2
- 210 cm2
55. The factors of X2+10X+21 are
- (X+2) (X+5)
- (X-3) (X+5)
- (X+2) (X-5)
- (X+3) (X+7)
56. The cube root of number 8000 is …….
- 80
- 40
- 20
- 8
57. Cos (90°-A) =?
- Cos A
- –Cos A
- Cosec A
- Sin A
58. A square whose side is 12 cm. Then its perimeter will be
- 144 cm
- 24 cm
- 48 cm
- 50 cm
59. A man got 10% increase in his salary. If his new salary is Rs. 1,54,000. Then his original salary is
- 1,50,000
- 1,60,000
- 1,40,000
- 1,45,000
60. How many multiples of 4 lies between 10 and 250?
- 40
- 50
- 60
- 70
61. Meeta saves Rs 400 from her salary. If this is 10% of her salary. What is her salary?
- 4000
- 5000
- 400
- 6000
62. The surface area of Cube is ……..
- A3
- 6a2
- A2
- 2a2
63. If 60 % of (x-y) = 40% of (x+y). Then what percent of x is y?
- 20%
- 25%
- 22%
- None of these
64. Find the missing number in the series 2,5,11,22,32,47, ……….. 86
- 60
- 65
- 58
- 62
65. If x+y = 18 and xy = 72 . What is the value of (x2)+(y2)
- 120
- 90
- 180
- None of these
66. What is the additive inverse of -3/7
- 7/3
- 3/7
- -7/3
- None of these
67. 81 : 27 :: 93 : ?
- 39
- 63
- 31
- 13
68. For what value of K, the number 7236K2 is divisible by 8?
- 7
- 5
- 4
- 9
69. Find a Pythagoras Triplet whose one number is 12?
- (12,15,17)
- (12,,35,37)
- (12,13,14)
- (5,12,14)
70. Find the smallest square number which is exactly divisible by 4, 9 and 10
- 900
- 400
- 490
- 360
71. What would be the proper ascending order of the following
1. Decametre
2. Meter
3. Kilometer
4. Centimeter
5. Millimeter
- (54123)
- (54321)
- (54213)
- (23154)
72. Largest four number digit is
- 9989
- 9000
- 9888
- 9999
73. Find the smallest number by which 216 should be divided to make the result a perfect square.
- 4
- 3
- 6
- 2
74. Which will be the smallest number of 7 digits using 0,1,2,3,4,5, and 6?
- 1204536
- 1023456
- 1042356
- 1654320
75. The age of Raju’s father is 5 times more then the three times the age of Raju what is the age of Raju. If his father’s age is 44 years.
- 14 yr
- 46 yr
- 40 yr
- 13 yr