Math Quantitative Aptitude

Math Quantitative Aptitude
91. If the radius of a circle be doubled, its area will be -
  • four times
  • doubled
  • tripled
  • same
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92. The volume of a wall, 5 times as high as it is broad and 8 times as long as it is high, is 18225 cu.m. Find the breadth of the wall.
  • 32.5 m
  • 5 m
  • 4.5 m
  • 3.5 m
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93. The earth’s surface is covered either by land or by water. The proportion covered by land of that 3/5 covered by water. What fraction of the entire surface of earth is land?
  • 1/2
  • 3/8
  • 1/3
  • 2/5
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94. A and B can do a piece of work in 72 days. B and C can do it in 120 days and A and C can do it in 90 days. In how many days can A alone do it?
  • 80 days
  • 100 days
  • 150 days
  • 120 days
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95. An electric pump can fill a tank in 3 hours: Because of a leak in the tank, it took 3 ½ hours to fill the tank. The leak can drain all the water of the tank in -

  • 21 hours
  • 6 ½ hours
  • 10 ½ hours
  • 12 hours
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96. The difference between simple interest and compound interest on a certain sum of money for 3 years at 10% pr annum is Rs.15 and paisa 50. The sum is—
  • Rs. 5000
  • Rs. 550
  • Rs. 500
  • Rs.11500
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97. The first wrong number is 1, second wrong number is 3 and the third wrong number is 5 and so on. What is the 200th number?
  • 199
  • 299
  • 399
  • 499
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98. A bottle contains 12 ounce’s of a medicine. Doctor advised the patient to take 2 ounces of medicine every half an hour. If the patient starts taking medicine at 7 am, how long will the medicine last?
  • 9.30 am
  • 12.30 pm
  • 10.00 am
  • 1.00 pm
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99. Find the appropriate answer:
1f 56 x 72 = 79, 32 x 4 = 81, 9 x 12 = 34, 25 x 30 = 56 then, 49 x 42 =?
  • 77
  • 76
  • 52
  • 67
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100. When the length of a right angled quadrilateral is increased by 2 units and its breadth is decreased by 2 Units, its area decreases by 28 square units. Similarly, if length is decreased by 1 unit and bread-th is increased by 2 Units, its area increases by 33 sq. units. What will be the area of the right angled quadrilateral?
  • 352 sq. units
  • 253 sq. units
  • 223 sq units
  • 225 sq. units
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