Quantitative Aptitude Practice Question and Answer

Q: Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 1876 0

  • 1
    Rs. 3845
    Correct
    Wrong
  • 2
    Rs. 4826
    Correct
    Wrong
  • 3
    Rs. 5142
    Correct
    Wrong
  • 4
    Rs. 4415
    Correct
    Wrong
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Answer : 2. "Rs. 4826"
Explanation :

Answer: B) Rs. 4826 Explanation: We know the formula for calculating The compound interest C = P1 + r100n - 1 where P = amount, r = rate of interest, n = time Here P = 5000, r1 = 10, r2 = 20 Then C = 65001 + 101002 x 1 + 201002 - 1= 6500 x 18562500= 65 x 185625 C = Rs. 4826.

Q: At what time, between 3 o’clock and 4 o’clock, both the hour hand and minute hand coincide each other  ? 1875 0

  • 1
    3:16 7/11
    Correct
    Wrong
  • 2
    3:16 11/4
    Correct
    Wrong
  • 3
    3:30
    Correct
    Wrong
  • 4
    3:16 4/11
    Correct
    Wrong
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Answer : 4. "3:16 4/11"
Explanation :

Answer: D) 3:16 4/11 Explanation: Coincide means 00  angle. This can be calculated using the formulafor time A to B means  [11m/2 - 30 (A)] Here m gives minutes after A the both hands coincides. Here A = 3, B = 4 0 =11m/2 –30 × 311m = 90 × 2 = 180m= 180/11 = 16 4/11 So time = 3 : 16 4/11

Q: Find the next number in the given number series? 2, 19, 0, 21, –2, ? 1872 0

  • 1
    23
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    27
    Correct
    Wrong
  • 4
    29
    Correct
    Wrong
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Answer : 1. "23"
Explanation :

Answer: A) 23 Explanation: The given number series 2, 19, 0, 21, –2, ? follows a pattern, 2 2 + 17 = 19 19 - 19 = 0 0 + 21 = 21 21 - 23 = -2 -2 + 25 = 23   Hence, the next number in the series is 23.

Q: A person in a bet 40 shots taken. 50p for a hit, 10p for a miss.(he have to give). Finally he has Rs.5. How many hits he have ? 1871 0

  • 1
    15
    Correct
    Wrong
  • 2
    20
    Correct
    Wrong
  • 3
    25
    Correct
    Wrong
  • 4
    30
    Correct
    Wrong
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Answer : 1. "15"
Explanation :

Answer: A) 15 Explanation: Let number of hit shots be 'X'Let number of miss shots be 'Y'Given X + Y = 40....(1)50X - 10Y = 500.....(2)Solving 1 and 2, we getX = 15 and Y = 25Therefore, number of hits = 15

Q: Namitha sold a powerbank which is at the cost of Rs. 1950 at a loss of 25%. Find at what cost will she have to sell it to get a profit of 25%? 1871 0

  • 1
    Rs. 3680
    Correct
    Wrong
  • 2
    Rs. 3560
    Correct
    Wrong
  • 3
    Rs. 3320
    Correct
    Wrong
  • 4
    Rs. 3250
    Correct
    Wrong
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Answer : 4. "Rs. 3250"
Explanation :

Answer: D) Rs. 3250 Explanation: Let the Cost price of the powerbank = Rs. P But given that by selling it at Rs. 1950, it gives a loss of 25% => P x 75100 = 1950=>P = 1950 x 10075 = Rs. 2600Now, to get a profit of 25% Selling Price = 2600 x 125100 = Rs. 3250.

Q:

28% members of a certain group are married. What is the respective ratio between the number of married members to the number of unmarried members?

1869 0

  • 1
    7:17
    Correct
    Wrong
  • 2
    5: 18
    Correct
    Wrong
  • 3
    7:18
    Correct
    Wrong
  • 4
    Cannot determined
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "7:18"
Explanation :

Let total number of person is=100
married person=28
unmarried person will be 100-28=72
The ratio will be 28/72=7/18


Q: An Engine length 1000 m moving at 10 m/s. A bird is flying from engine to end with 'x' m/s and coming back at '2x' m/s. Take total time of bird travelling as 187.5 s. Find x and 2x in km/hr ? 1866 0

  • 1
    21.4 and 42.8
    Correct
    Wrong
  • 2
    25.2 and 50.4
    Correct
    Wrong
  • 3
    31.4208 and 62.8416
    Correct
    Wrong
  • 4
    33.12 and 66.24
    Correct
    Wrong
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Answer : 3. "31.4208 and 62.8416"
Explanation :

Answer: C) 31.4208 and 62.8416 Explanation: Birds speeds in mtrs/sec is 'x' and '2x' .While flying from Engine to end, relative speed = (x+10) m/secfrom end to engine, flying speed = (2x - 10) mtr/secso 1000/(x+10) + 1000/(2x-10) = 187.5 secssolving it, we getso x = 8.728 m/sec and 2x= 17.456 m/sec x = 31.4208 km/hr and 2x = 62.8416 km/hr.

Q: Find the next number in the series 2, 3, 4, 8, 9, 10, 11, 16, 17, 18, 19, 20,... 1866 0

  • 1
    27
    Correct
    Wrong
  • 2
    26
    Correct
    Wrong
  • 3
    24
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 2. "26"
Explanation :

Answer: B) 26 Explanation: The pattern is three consecutive numbers and then three consecutive numbers missing.Then four consecutive numbers and then four consecutive numbers missing.Then five consecutive numbers and then five consecutive numbers missing.   The next number=20+6=26

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