Quantitative Aptitude Practice Question and Answer

Q: Find the ratio of the areas of the incircle and circumcircle of a square ? 1884 0

  • 1
    1 : 4
    Correct
    Wrong
  • 2
    4 : 1
    Correct
    Wrong
  • 3
    2 : 1
    Correct
    Wrong
  • 4
    1 : 2
    Correct
    Wrong
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Answer : 4. "1 : 2"
Explanation :

Answer: D) 1 : 2 Explanation: Let the side of the square be x. Then, its diagonal = 2x.     Radius of incircle = x/2  and radius of circumcircle =2x2 . Therefore, required ratio = πx24:πx22 = 14:12=1:2

Q: A man rows his boat 60 km downstream and 30 km upstream taking 3 hrs each time. Find the speed of the stream ? 1882 0

  • 1
    5 kmph
    Correct
    Wrong
  • 2
    10 kmph
    Correct
    Wrong
  • 3
    15 kmph
    Correct
    Wrong
  • 4
    45 kmph
    Correct
    Wrong
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Answer : 1. "5 kmph"
Explanation :

Answer: A) 5 kmph Explanation: Speed of the boat downstream  s=a/t= 60/3 = 20 kmph Speed of the boat upstream s= d/t = 30/3= 10 kmph   Therefore,  The speed of the stream = speed of downstream - speed of upstream2=5 kmph

Q: Excluding stoppages, the average speed of a bus is 60 km/hr and including stoppages, the average speed of the bus is 40 km/hr. For how many minutes does the bus stop per hour ? 1876 0

  • 1
    2 hrs
    Correct
    Wrong
  • 2
    20 min
    Correct
    Wrong
  • 3
    40 min
    Correct
    Wrong
  • 4
    30 min
    Correct
    Wrong
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Answer : 2. "20 min"
Explanation :

Answer: B) 20 min Explanation: In 1hr, the bus covers 60 km without stoppages and 40 km with stoppages. Stoppage time = time take to travel (60 - 40) km i.e 20 km at 60 km/hr. stoppage time = 20/60 hrs = 20 min.

Q: The missing number in the Series 114, 131, 165, 216,  ?, 369 1876 0

  • 1
    314
    Correct
    Wrong
  • 2
    304
    Correct
    Wrong
  • 3
    294
    Correct
    Wrong
  • 4
    284
    Correct
    Wrong
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Answer : 4. "284"
Explanation :

Answer: D) 284 Explanation: 114       131     165     216     ?      369    +17      +34     +51     +68    +85   => The missing number in the given Number series = 216 + 68 = 284.

Q: Calculate the number of bricks, each measuring 25 cm x 15 cm x 8 cm required to construct a wall of dimensions 10 m x 4 cm x 6 m when 10% of its volume is occupied by mortar  ? 1874 0

  • 1
    720
    Correct
    Wrong
  • 2
    600
    Correct
    Wrong
  • 3
    660
    Correct
    Wrong
  • 4
    6000
    Correct
    Wrong
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Answer : 1. "720"
Explanation :

Answer: A) 720 Explanation: Let the number of bricks be 'N' 10 x 4/100 x 6 x 90/100 = 25/100 x 15/100 x 8/100 x N 10 x 4 x 6 x 90 = 15 x 2 x N => N = 720.

Q: Adam and Smith are working on a project. Adam takes 6 hrs to type 36 pages on a computer, while Smith takes 5 hrs to type 40 pages. How much time will they take, working together on two different computers to type a project of 120 pages? 1873 0

  • 1
    8 hrs 45 min
    Correct
    Wrong
  • 2
    8 hrs 42 min
    Correct
    Wrong
  • 3
    8 hrs
    Correct
    Wrong
  • 4
    8 hrs 34 min
    Correct
    Wrong
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Answer : 4. "8 hrs 34 min"
Explanation :

Answer: D) 8 hrs 34 min Explanation: Number of pages typed by Adam in 1 hour = 36/6 = 6 Number of pages typed by Smith in 1 hour = 40/5 = 8Number of pages typed by both in 1 hour = (6 + 8) = 14Time taken by both to type 110 pages = (120 * 1/14) = 847 = 8 hrs 34 min.

Q: 270 metre long train running at 10 km/hrs crosses another train running at 80 km/hrs. in 20 seconds Trains are running in opposite direction. Length of seconds train? 1873 0

  • 1
    240 metre
    Correct
    Wrong
  • 2
    320 metre
    Correct
    Wrong
  • 3
    260 metre
    Correct
    Wrong
  • 4
    230 metre
    Correct
    Wrong
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Answer : 4. "230 metre"

Q: Find the Missing number in the given number series? 5, 9, 15, 23, ?, 45 1868 0

  • 1
    33
    Correct
    Wrong
  • 2
    29
    Correct
    Wrong
  • 3
    31
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
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Answer : 1. "33"
Explanation :

Answer: A) 33 Explanation: The given series follows a pattern that, +4, +6, +8, +10, +12... 5 5 + 4 = 9 9 + 6 = 15 15 + 8 = 23 23 + 10 = 33 33 + 12 = 45   Hence, the missing number in the series is 33.

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