Quantitative Aptitude Practice Question and Answer

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 ? 1737 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: There are 5 consecutive odd numbers. If the difference between square of the average of first two odd number and the of the average last two odd numbers is 396, what is the smallest odd number? 1735 0

  • 1
    29
    Correct
    Wrong
  • 2
    27
    Correct
    Wrong
  • 3
    31
    Correct
    Wrong
  • 4
    33
    Correct
    Wrong
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Answer : 1. "29"
Explanation :

Answer: A) 29 Explanation: Let the five consecutive odd numbers be x-4, x-2, x, x+2, x+4 According to the question, Difference between square of the average of first two odd number and the of the average last two odd numbers is 396 i.e, x+3 and x-3 ⇒x + 32 - x - 32 = 396⇒ x2 + 9 + 6x - x2 + 6x - 9 = 396⇒ 12x = 396⇒ x = 33   Hence, the smallest odd number is 33 - 4 = 29.

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?

1735 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: A jogger running at 9 km/hr along side a railway track is 260 m ahead of the engine of a 140 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger ? 1733 0

  • 1
    25 sec
    Correct
    Wrong
  • 2
    40 sec
    Correct
    Wrong
  • 3
    38 sec
    Correct
    Wrong
  • 4
    32 sec
    Correct
    Wrong
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Answer : 2. "40 sec"
Explanation :

Answer: B) 40 sec Explanation: Speed of train relative to jogger = 45 - 9 = 36 km/hr.= 36 x 5/18 = 10 m/sec. Distance to be covered = 260 + 140 = 400 m. Time taken = 400/10 = 40 sec.

Q: 45 men working 9 hours per day dig 40 m deep. How many extra men should be put to dig to a depth of 56 m working 7 hours per day ? 1732 0

  • 1
    36
    Correct
    Wrong
  • 2
    61
    Correct
    Wrong
  • 3
    48
    Correct
    Wrong
  • 4
    54
    Correct
    Wrong
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Answer : 1. "36"
Explanation :

Answer: A) 36 Explanation: (45 x 9)/40 = (M x 7)/56 => M = 81 => 81 – 45 = 36

Q: K and L start a business jointly. L invests Rs.16000 for 8 months and L remains in the business for 4 months. Out of the total profit B claims 2/7th share. How much money is contributed by B  ? 1732 0

  • 1
    Rs. 9040
    Correct
    Wrong
  • 2
    Rs. 10,400
    Correct
    Wrong
  • 3
    Rs. 12,800
    Correct
    Wrong
  • 4
    Rs. 6350
    Correct
    Wrong
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Answer : 3. "Rs. 12,800"
Explanation :

Answer: C) Rs. 12,800 Explanation: 16x8 : Px4 = 5:2 P = 12.8 => Rs.12,800

Q: Ali and Faizer are 27m apart. They both start walking and meet 9 hrs later, if they travel in the same direction and meet after 3 hrs if they walk in opposite dirction, Ali’s speed must most likely be ? 1731 0

  • 1
    9 m/h
    Correct
    Wrong
  • 2
    3 m/h
    Correct
    Wrong
  • 3
    6 m/h
    Correct
    Wrong
  • 4
    12 m/h
    Correct
    Wrong
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Answer : 3. "6 m/h"
Explanation :

Answer: C) 6 m/h Explanation: let, speed of Ali=X mph and Faizer=Y mph Now, relative speed when Ali is walking int the same direction with Faizer= (X-Y)mphhence, according to question, 27/(X-Y)=9 ; solving X-Y=3; --- (1) Now relative speed when walking in the opposite direction= (X+Y) mphhence, according to question, 27/(X+y)=3; solving X+Y=9; --- (2) solving 1 and 2 we get X=6 and Y=3, where X is the speed of Ali.

Q: Find the next number in the following number series? 410, 409, 413, 404, ? 1729 0

  • 1
    412
    Correct
    Wrong
  • 2
    415
    Correct
    Wrong
  • 3
    418
    Correct
    Wrong
  • 4
    420
    Correct
    Wrong
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Answer : 4. "420"
Explanation :

Answer: D) 420 Explanation: The given number series 410, 409, 413, 404, ? , follows a pattern that  410 410 - 13 = 409409 + 22 = 413413 - 33 = 404404 + 42 = 420   Hence, the next number in the given series is 420.

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