Quantitative Aptitude Practice Question and Answer

Q: The product of two positive numbers is p. If each of the numbers is increased by 2, the new product is how much greater than twice the sum of the two original numbers ? 2069 0

  • 1
    p times
    Correct
    Wrong
  • 2
    2p times
    Correct
    Wrong
  • 3
    (p + 4) times
    Correct
    Wrong
  • 4
    (2p + 3) times
    Correct
    Wrong
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Answer : 3. "(p + 4) times"
Explanation :

Answer: C) (p + 4) times Explanation: Let the two no's be a and b;Given product of the no's is p = ab;If the each nos is increased by 2 then the new product will be (a+2)(b+2) = ab + 2a + 2b + 4= ab + 2(a+b) + 4= p + 2(a+b) + 4Hence the new product is (p+4) times greater than twice the sum of the two original numbers.

Q: A person says that his son is 5 times as old as his daughter and his wife is 5 times older than his son and he is twice the age of his wife . The sum total of all the ages equals the age of the grand mother who celebrated her 81st birthday today. How old was his son? 2063 0

  • 1
    50 yrs
    Correct
    Wrong
  • 2
    25 yrs
    Correct
    Wrong
  • 3
    72 yrs
    Correct
    Wrong
  • 4
    40 yrs
    Correct
    Wrong
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Answer : 1. "50 yrs"
Explanation :

Answer: A) 50 yrs Explanation: Let the daughter age be 'x'Therefore, Son age = 5x, Mother age = 25x, Person age = 50x. Thus we get, x+5x+25x+50x = 8181x = 81x = 1 Daughter's age = 1, Son's = 5, Mother's = 25, Person's age = 50.

Q: A circular piece of thin wire is converted into a rhombus of side 11 cm. Find the diameter of the circular piece? 2062 0

  • 1
    28 cm
    Correct
    Wrong
  • 2
    3.5 cm
    Correct
    Wrong
  • 3
    7 cm
    Correct
    Wrong
  • 4
    14 cm
    Correct
    Wrong
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Answer : 4. "14 cm"
Explanation :

Answer: D) 14 cm Explanation: Circular piece is 4 x 11 = 44 cm long, Then Circumference of circle is given by, 44 = pi x D, where D is the diameter D = 44 / pi Take pi = 22 / 7, then D = 44 / (22/7) = (44 x 7) / 22 D = 14 cm.

Q: Two bottles contains mixture of milk and water. First bottle contains 64% milk and second bottle contains 26% water. In what ratio these two mixtures are mixed so that new mixture contains 68% milk? 2061 0

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

Answer: A) 3 : 2 Explanation: % of milk in first bottle = 64% % of milk in second bottle = 100 - 26 = 74% Now, ATQ   64%            74%                   68%   6                    4   Hence, by using allegation method,   Required ratio = 3 : 2

Q: Find the next number in the given series 0.25, 8, 128, 1024, ? 2060 0

  • 1
    4096
    Correct
    Wrong
  • 2
    2526
    Correct
    Wrong
  • 3
    8486
    Correct
    Wrong
  • 4
    2620
    Correct
    Wrong
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Answer : 1. "4096"
Explanation :

Answer: A) 4096 Explanation: Here given series follows a pattern that 0.25, 8, 128, 1024, ? 0.25 x 32 = 8 8 x 16 = 128 128 x 8 = 1024 1024 x 4 = 4096

Q: From a bunch of flowers having 16 red roses and 14 white roses, four flowers have to be selected. In how many different ways can they be selected such that at least one red rose is selected? 2059 0

  • 1
    27405
    Correct
    Wrong
  • 2
    26584
    Correct
    Wrong
  • 3
    26585
    Correct
    Wrong
  • 4
    27404
    Correct
    Wrong
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Answer : 4. "27404"
Explanation :

Answer: D) 27404 Explanation: Given total 16 Red roses and 14 White roses = 30 roses   Four flowers have to be selected from 30 i.e,  C430= 27405 Ways    Now, atleast one Red rose is selected i.e, 27405(total) - 1(all four are white roses)  = 27404 ways.

Q: In how many ways word of 'GLACIOUS' can be arranged such that 'C' always comes at end? 2058 0

  • 1
    3360
    Correct
    Wrong
  • 2
    5040
    Correct
    Wrong
  • 3
    720
    Correct
    Wrong
  • 4
    1080
    Correct
    Wrong
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Answer : 2. "5040"
Explanation :

Answer: B) 5040 Explanation: Given word is GLACIOUS has 8 letters. => C is fixed in one of the 8 places Then, the remaining 7 letters can be arranged in 7! ways = 5040.

Q: In a year, Holi was enjoyed on 6th March 9 AM and Deepawali was celebrated on 11th November 8 PM. The total time interval (in hours) between the two was ? 2054 0

  • 1
    2101 hrs
    Correct
    Wrong
  • 2
    4125 hrs
    Correct
    Wrong
  • 3
    5124 hrs
    Correct
    Wrong
  • 4
    6011 hrs
    Correct
    Wrong
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Answer : 4. "6011 hrs"
Explanation :

Answer: D) 6011 hrs Explanation: From March 6th to November 11th, there are 250 days and Thus 250 x 24 hoursSo from Mar 6th 9AM to Nov 11th 8PM, there will be 250 x 24 + 11 hours = 6011 hrs.

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