51. When 1 is added to to $$\frac{13}{15}$$ th part of $$\frac{7}{8}$$ then it is equal to n-th part of $$\frac{13}{7}$$ Then n=
52. The ratio of the present age of a man and his wife is 4:3 and 4 years hence the ratio of their ages will be 9:7 If the ratio of their ages at the time of their marriage was 13:9, how many years ago were they married ?
53. The average height of 35 students in a class is 4’2”. Three students of average height moved to new section while 6 students of total height 33’4” joined the class The average height of the student in the class is now
54. If 16 sheep or 12 horses eat the grass of a field in 20 days then in how many days will 5 sheep and 4 horses eat it ?
55. The smallest positive integer n with 24 divisors considering 1 and n as divisors is
56. The diagonal of a rectangular field is 50 m and one of the sides is 48 m If the cost of cutting the grass of the field is Rs 24 per square metre then the total cost of cutting all grass of the rectangular field is
57. The ratio of the ages of X and Y three years ago was 4:5 and that after three years will be 5:6. Then the sum of the ages of X and Y is
58. What is the formula of Sodium Zincate ?
59. Bronze is an alloy It’s constituents are
60. Which compound (given below) is not a peroxide ?
61. In Bayer’s process the Bauxite one (for purification) is digested in
62. The magnitude of a vector is never
63. The force of attraction or repulsion between charges follows
64. Ratio of mass of proton and electron will be
65. In a circuit containing inductance and resistance
66. A virus inside a human organ can triple itself at every second Then the ratio of the number of viruses at 28 seconds and 30 seconds is
67. Look at the word APPROXIMATION. Which of the following words can be formed by using the alphabets in the given word
68. In a certain language “Raja and Rani” is written as “ni mo chi” and Rani of Jhansi” is written as “mo ko lo” then “Raja of Jodhpur” may be coded as
69. There are 7 pentagons and hexagons in a chart If the total number of sides is 38 then the number of pentagons is
70. Grass:Lawn::Tree: ?
71. If JRURLVDN represents HOSPITAL in a code language then DOCTOR is represented by
72. Bimal is older than Chand but younger to Anil Dipak is younger to Emon but older than Chand.If Anil is younger to Emon then which of the following can definitely be concluded ?
73. Starting from his house Arun moves 5 km to the north east and then 4 km towards south He now moves 3 km towards east and then move 8 km towards north to reach his friend’s hourse. Then his friend’s house is
74. 32 boys are standing in front of X in a queue. Y is standing in the 19th position from the back in the same queue.If total number of boys is 45 then the number of boys standing in between X and Y is
75. If ‘+’ stands for $$\div$$, ‘-’ stands for ‘+’, ‘$$\times$$’ for '+' and $$\div$$ for ‘x’ then $$4+4 \times 2 \div 2-8=$$
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