Quantitative Aptitude Practice Question and Answer

Q: A milkman has 20 liters of milk. If he mixes 5 liters of water, which is freely available, in 20 liters of pure milk. If the cost of pure milk is Rs. 18 per litre, then the profit of the milkman, when he sells all the mixture at  cost price, is: 2471 3

  • 1
    20%
    Correct
    Wrong
  • 2
    25%
    Correct
    Wrong
  • 3
    33.33%
    Correct
    Wrong
  • 4
    18%
    Correct
    Wrong
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Answer : 2. "25%"
Explanation :

Answer: B) 25% Explanation: When the water is freely available and all the water is sold at the price of the milk, then the water gives the profit on the cost of 20 litres of milk.     Since,    the profit % = ProfitCostPricex100 Therefore, profit percentage = 520x100  = 25%

Q: If the true discount on sum due 2 years hence at 14% per annum be Rs. 168, the sum due is ? 3965 5

  • 1
    Rs.948
    Correct
    Wrong
  • 2
    Rs.876
    Correct
    Wrong
  • 3
    Rs.768
    Correct
    Wrong
  • 4
    Rs.658
    Correct
    Wrong
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Answer : 3. "Rs.768"
Explanation :

Answer: C) Rs.768 Explanation: P.W. = 100×T.DR×T = 100×16814×2 = 600. Sum = (P.W. + T.D.) = Rs. (600 + 168) = Rs. 768.

Q: The ratio of two positive numbers is 3 : 5 and the average of the number is 48. What is the product of numbers? 750 0

  • 1
    3365
    Correct
    Wrong
  • 2
    2160
    Correct
    Wrong
  • 3
    1854
    Correct
    Wrong
  • 4
    1632
    Correct
    Wrong
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Answer : 2. "2160"
Explanation :

Answer: B) 2160 Explanation: Let the number be 3p and 5p ATQ, 8p = 2 x 48 p = 96/8 p = 12   The numbers are 36 and 60.   Hence, the product of the numbers = 36 x 60 = 2160.

Q: Find the wrong number in the given number series? 10, 21, 54, 109, 189 4161 0

  • 1
    189
    Correct
    Wrong
  • 2
    109
    Correct
    Wrong
  • 3
    54
    Correct
    Wrong
  • 4
    21
    Correct
    Wrong
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Answer : 1. "189"
Explanation :

Answer: A) 189 Explanation: The given number series is 10, 21, 54, 109, 189 The series follows a pattern that 10 + 11 = 21 21 + 33 = 54 54 + 55 = 109 109 + 77 = 186   Hence the wrong number in the given number series is 189.

Q:

What is the respective ratio of number of employees in Administrative department to the number of males in the same department?

5280 0

  • 1
    9:4
    Correct
    Wrong
  • 2
    8:3
    Correct
    Wrong
  • 3
    7:2
    Correct
    Wrong
  • 4
    8:5
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 1. "9:4"

Q: In a class 60% of the students pass in English and 45% pass in Hindi. If 25% of them pass in both subjects, what percentage of the students fail in both the subjects? 1106 0

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

Answer: A) 20% Explanation: Percentage of students passed in English = 60% Percentage of students passed in Hindi = 45% Percentage of students passed in both subjects = 25% ATQ, Percentage of students passed in only English = 60 - 25 = 35% Percentage of students passed in only Hindi = 45 - 25 = 20% Therefore, Percentage of students failed = 100 - (35 + 25 + 20) = 100 - 80 = 20%.

Q: In a garden, the ratio of the number of coconut trees to that of mango trees is 5:6 respectively. If the total number of trees is 121, then how many coconut trees are there in the garden? 3204 2

  • 1
    50
    Correct
    Wrong
  • 2
    45
    Correct
    Wrong
  • 3
    56
    Correct
    Wrong
  • 4
    55
    Correct
    Wrong
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Answer : 4. "55"

Q: A, B and C together can do a work in 8 days if A and B can do it in 20 and 30 days respectively. In how many days C alone can complete it? 1572 1

  • 1
    16
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    24
    Correct
    Wrong
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Answer : 4. "24"

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