Quantitative Aptitude Practice Question and Answer

Q:

The average speed of a train is 3 times the average speed of car. The car covers a distance of 520 km in 8 hours. How much distance will the train cover in 13 hours?

3120 0

  • 1
    2553 km
    Correct
    Wrong
  • 2
    2585 km
    Correct
    Wrong
  • 3
    2355 km
    Correct
    Wrong
  • 4
    2535 km
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 4. "2535 km"
Explanation :


Train   Car
3          1
Speed of car is =520/8=65km/h
so that speed of train = 65*3=195 km/hour
Distance covered by train=speed*time=195*13=2535 km

Q: Given that on 9th August 2016 is Saturday. What was the day on 9th August 1616 ? 3112 0

  • 1
    Saturday
    Correct
    Wrong
  • 2
    Sunday
    Correct
    Wrong
  • 3
    Friday
    Correct
    Wrong
  • 4
    Monday
    Correct
    Wrong
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Answer : 1. "Saturday"
Explanation :

Answer: A) Saturday Explanation: We know that, After every 400 years, the same day occurs.Thus, if 9th August 2016 is Saturday, before 400 years i.e., on 9th August 1616 has to be Saturday.

Q: Five boxes of bananas sell for Rs. 30. how many boxes can you buy for Rs.9? 3103 0

  • 1
    2
    Correct
    Wrong
  • 2
    1.5
    Correct
    Wrong
  • 3
    1.25
    Correct
    Wrong
  • 4
    2.5
    Correct
    Wrong
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Answer : 2. "1.5"
Explanation :

Answer: B) 1.5 Explanation: Given Five boxes of bananas sell for Rs. 30. => 1 Box of Bananas for = 30/5 = Rs. 6   Then, for Rs. 9 => 9/6 = 3/2 = 1.5   Hence, for Rs. 9, 1.5 box of bananas can buy.

Q: A trader mixes 36 kg of rice at Rs. 20 per kg with 14 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is: 3101 0

  • 1
    25%
    Correct
    Wrong
  • 2
    21.14%
    Correct
    Wrong
  • 3
    22.54%
    Correct
    Wrong
  • 4
    27.32%
    Correct
    Wrong
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Answer : 3. "22.54%"
Explanation :

Answer: C) 22.54% Explanation: C.P. of 50 kg rice = Rs. (36 x 20 + 14 x 36) = Rs. (720 + 504) = Rs.1224.   S.P. of 56 kg rice = Rs. (50 x 30) = Rs.1500. Profit = 1500 - 1224 = Rs.276    Profit % = ProfitC.P×100  = 2761224×100 = 22.54%.

Q: Althaf borrows Rs. 1500 from two moneylenders. He pays interest at the rate of 12% per annum for one loan and at the rate of 14% per annum for the other. The total interest he pays for the entire year is Rs. 186. How much does he borrow at the rate of 12% ? 3100 0

  • 1
    Rs. 300
    Correct
    Wrong
  • 2
    Rs. 400
    Correct
    Wrong
  • 3
    Rs. 1200
    Correct
    Wrong
  • 4
    Rs. 1100
    Correct
    Wrong
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Answer : 3. "Rs. 1200"
Explanation :

Answer: C) Rs. 1200 Explanation: Let Althaf lent Rs. A at 14% per year.Hence, Money lent at 12% = (1500-A);Given, total interest = Rs. 186.{(A x 14x 1)/100} + {[(1500-A) x 12 x 1/100]} = 186;14A/100 + (18000 -12A)/100 = 186;14A + 18000 - 12A = 186x100;2A = 18600-18000;A = 600/2 = Rs. 300.Hence, money lent at 12% = 1500-300 = Rs. 1200.

Q: Rajesh rows in still water with a speed of 4.5 kmph to go to a certain place and comes back. Find his average speed for the whole journey, if the river is flowing with a speed of 1.5 kmph? 3099 0

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

Answer: B) 4 kmph Explanation: Let the distance in one direction = k kms Speed in still water = 4.5 kmph Speed of river = 1.5 Hence, speed in upstream = 4.5 - 1.5 = 3 kmph Speed in downstream = 4.5 + 1.5 = 6 kmph Time taken by Rajesh to row upwards = k/3 hrs Time taken by Rajesh to row downwards = k/6 hrs Now, required Average speed =Total distanceTotal speed = 2kk3 + k6 = 2k x 186k + 3k = 4 kmph    Therefore, the average speed of the whole journey = 4kmph.

Q: Rajan's present age is three times his daughter's and nine-thirteenth of his mother's present age. The sum of the present ages of all three of them is 125 years. What is the difference between the present ages of Rajan's daughter and Rajan's mather ? 3094 0

  • 1
    32 years
    Correct
    Wrong
  • 2
    48 years
    Correct
    Wrong
  • 3
    62 years
    Correct
    Wrong
  • 4
    50 years
    Correct
    Wrong
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Answer : 4. "50 years"
Explanation :

Answer: D) 50 years Explanation: Let Rajan's present age be 'x' years.=> Then his daughter's present age is = x/3 years.His mother's present age = 13x/9 yearsNow, according to the question,x + x/3 + 13x/9 = 125=> x = 125x9/25 = 45Therefore, required difference = 13x/9 - x/3 = 13x - 3x/9 = 10x/9=> 10 x 45/9 = 50 years.

Q: Ayush was born two years after his father's marriage. His mother is five years younger than his father but 20 years older than Ayush who is 10 years old. At what age did the father get married ? 3092 0

  • 1
    25 years
    Correct
    Wrong
  • 2
    24 years
    Correct
    Wrong
  • 3
    23 years
    Correct
    Wrong
  • 4
    22 years
    Correct
    Wrong
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Answer : 3. "23 years"
Explanation :

Answer: C) 23 years Explanation: Ayush's present age = 10 years.His mother's present age = (10 + 20) years = 30 years.Ayush's father's present age = (30 + 5) years = 35 years.Ayush's father's age at the time of Ayush's birth = (35 - 10) years = 25 years. Therefore Ayush's father's age at the time of marriage = (25 - 2) years = 23 years.

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