Aptitude Question Papers

71. By investing Rs. 1100 in a 5 % stock one earns Rs. 77. The stock is then quoted at:

72. There would be 10% loss if rice is sold at Rs. 5.40 per kg. At what price per kg should it be sold to earn a profit of 20%?

73. A man purchased a cow for Rs. 300 and sold it the same day for Rs. 360, allowing the buyer a credit of 9 years. If the rate of interest be 7 % per annum, then the man has a gain of:

74. In how many years will a sum of money double itself at 12% per annum:

75. The ratio of the areas of two squares one having double its diagonal than the other is:

76. A mixture of 20 kg. of spirit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25% ?

77. Simple interest on a sum at 4% per annum for 2 years is Rs. 80. The compound interest on the same sum for the same period is:

78. If 22.5 metres of a uniform iron rod weighs 85.5 kg., what will be the weight of 6 meters of the same rod ?

79. At what angle the hands of a clock are inclined at 15 minutes past 5 ?

80. The year next to 1988 having the same calendar as that of 1988 is: