Quantitative Aptitude Practice Question and Answer

Q: At an examination in which maximum marks are 500. P got 10% less than Q, Q got 25% more than R and R got 20% less than S. If P got 360 marks what percentage of marks was obtained by S ? 1752 0

  • 1
    77
    Correct
    Wrong
  • 2
    74
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    83
    Correct
    Wrong
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Answer : 3. "80"
Explanation :

Answer: C) 80 Explanation: Let marks obtained by S = M R's marks = 0.80M Q's marks = 1.25 (0.80M) P's marks = (0.90) (1.25) (0.80M) = 0.9M But 0.9M = 360 M = ? M = 400 Hence % of marks obtained by S = 400/500 x 100 = 80%.

Q: Calender Puzzle 1749 0

  • 1
    A
    Correct
    Wrong
  • 2
    B
    Correct
    Wrong
  • 3
    C
    Correct
    Wrong
  • 4
    D
    Correct
    Wrong
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Answer : 4. "D"
Explanation :

Answer: D) D Explanation: We can't determine the last day of the next month which has 31 days because we don't know the days in present month which may be 30 or 31. And the next month may be March which contains 31 days  which implies that the present month may be February which contains 28 or 29 days.

Q: A passenger train is moving at a speed of 120 km/hr. If the length of the train is 101 meters, how long will it take to cross a railway platform 154 meters long ? 1748 0

  • 1
    6.24 sec
    Correct
    Wrong
  • 2
    6.58 sec
    Correct
    Wrong
  • 3
    7.325 sec
    Correct
    Wrong
  • 4
    7.65 sec
    Correct
    Wrong
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Answer : 4. "7.65 sec"
Explanation :

Answer: D) 7.65 sec Explanation: Here total distance = 154 + 101 = 255 mtsGiven speed = 120 kmph = 120x5/18 m/secHence, Time = d/s = 255x18/120x5 = 7.65 sec

Q: Twelve children take sixteen days to complete a work which can be completed by 8 adults in 12 days. After working for 3 days, sixteen adults left and six adults and four children joined them. How many days will they take to complete the remaining work ? 1747 0

  • 1
    3 days
    Correct
    Wrong
  • 2
    2 days
    Correct
    Wrong
  • 3
    6 days
    Correct
    Wrong
  • 4
    12 days
    Correct
    Wrong
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Answer : 3. "6 days"
Explanation :

Answer: C) 6 days Explanation: From the given data, 12 children 16 days work,One child’s one day work = 1/192. 8 adults 12 days work,One adult’s one day’s work = 1/96. Work done in 3 days = ((1/96) x 16 x 3) = 1/2 Remaining work = 1 – 1/2 = 1/2 (6 adults+ 4 children)’s 1 day’s work = 6/96 + 4/192 = 1/12 1/12 work is done by them in 1 day. 1/2 work is done by them in 12 x (1/2) = 6 days.

Q: Prithvi spent Rs.89,745 on his college fees, Rs 51,291 on Personality Development Classes, and the remaining 27% of the total amount he had as cash with him. What was the total amount? 1747 0

  • 1
    Rs.1,85,400
    Correct
    Wrong
  • 2
    Rs.1,89,600
    Correct
    Wrong
  • 3
    Rs.1,91,800
    Correct
    Wrong
  • 4
    Rs.1,93,200
    Correct
    Wrong
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Answer : 4. "Rs.1,93,200"
Explanation :

Answer: D) Rs.1,93,200 Explanation:

Q: If L exceeds K by 30%, then K is less than L by ? 1745 0

  • 1
    14 2/5 %
    Correct
    Wrong
  • 2
    23 1/3 %
    Correct
    Wrong
  • 3
    20 %
    Correct
    Wrong
  • 4
    16 %
    Correct
    Wrong
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Answer : 2. "23 1/3 %"
Explanation :

Answer: B) 23 1/3 % Explanation: K = 100 L = 130130------ 30100------- ? => 23 1/13 %

Q: Write 0.125 as a percent %? 1745 0

  • 1
    12%
    Correct
    Wrong
  • 2
    12.5%
    Correct
    Wrong
  • 3
    13%
    Correct
    Wrong
  • 4
    13.5%
    Correct
    Wrong
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Answer : 2. "12.5%"
Explanation :

Answer: B) 12.5% Explanation: Here to convert 0.125 into % First convert to fractio Multiply and divide by 1000 => 0.125 x 10001000 = 1251000 = 18 => Now, in percentage18 x 100 = 12.5%

Q: How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9 which are divisible by 5 and none of the digits is repeated ? 1742 0

  • 1
    15
    Correct
    Wrong
  • 2
    20
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    10
    Correct
    Wrong
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Answer : 2. "20"
Explanation :

Answer: B) 20 Explanation: Since each number to be divisible by 5, we must have 5 0r 0 at the units place. But in given digits we have only 5.   So, there is one way of doing it.   Tens place can be filled by any of the remaining 5 numbers.So, there are 5 ways of filling the tens place.   The hundreds place can now be filled by any of the remaining 4 digits. So, there are 4 ways of filling it.   Required number of numbers = (1 x 5 x 4) = 20.

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