Quantitative Aptitude Practice Question and Answer

Q: 1.12.91 is the first Tuesday. Which is the fourth Thursday of December 91  ? 1859 0

  • 1
    22.12.91
    Correct
    Wrong
  • 2
    25.12.91
    Correct
    Wrong
  • 3
    24.12.91
    Correct
    Wrong
  • 4
    23.12.91
    Correct
    Wrong
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Answer : 2. "25.12.91"
Explanation :

Answer: B) 25.12.91 Explanation: Given that 2.12.91 is the first TuesdayHence we can assume that 4.12.91 is the first Thursday If we add 7 days to 4.12.91, we will get second ThursdayIf we add 14 days to 4.12.91, we will get third ThursdayIf we add 21 days to 4.12.91, we will get fourth Thursday => fourth Thursday = (4.12.91 + 21 days) = 25.12.91.

Q: How many iron rods, each of length 7 mts and diameter 2 cms can be made out of 0.88 cubic metre of iron ? 1857 0

  • 1
    500
    Correct
    Wrong
  • 2
    600
    Correct
    Wrong
  • 3
    400
    Correct
    Wrong
  • 4
    300
    Correct
    Wrong
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Answer : 3. "400"
Explanation :

Answer: C) 400 Explanation: Given length of iron rod =7 mts and  and diameter of rod = 2 cms  => r = 1/100 mts Therefore,  Volume of one rod = πr2h cu. m =  227×11002×7cu. m = 115000 cu. m Given volume of iron = 0.88 cu. m  Therefore, Number of rods = 0.88×500011 = 400.

Q: The payment per hour for a daily-wages employee is increased by 33.33 and the working time is reduced by 33.33%. What is the percentage change in the employee's income ? 1857 0

  • 1
    11.11% decrease
    Correct
    Wrong
  • 2
    21.11% increase
    Correct
    Wrong
  • 3
    11.11% increase
    Correct
    Wrong
  • 4
    21.11% decrease
    Correct
    Wrong
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Answer : 1. "11.11% decrease"
Explanation :

Answer: A) 11.11% decrease Explanation: If earlier he is getting Rs. 1  per hr and working for 1 hr, income = Rs. 1Now he is getting Rs 1.3333 per hr and working for 0.66667 hrs Then income for 0.66667 hrs = Rs. 0.8889. If payment per hr is increased by 33.33 %  and working hours dereased by 33.33%, then 11.11 % decrease in income.

Q: How old are you if you are born in 1995? 1856 0

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

Answer: B) 23 Explanation: Calculating Age has 2 conditions. Let your Birthday is on January 1st. 1. If the month in which you are born is completed in the present year i.e, your birthday, then Your Age = Present year - Year you are born  As of now, present year = 2018 i.e, Age = 2018 - 1995 = 23 years.   2. If the month in which you are born is not completed in the present year i.e, your birthday, then Your Age = Last year - Year you are born As of now, present year = 2018 i.e, Age = 2017 - 1995 = 22 years.

Q: What percent is 120 of 85 ? 1853 0

  • 1
    133.33 %
    Correct
    Wrong
  • 2
    141.17 %
    Correct
    Wrong
  • 3
    145.54 %
    Correct
    Wrong
  • 4
    139.29 %
    Correct
    Wrong
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Answer : 2. "141.17 %"
Explanation :

Answer: B) 141.17 % Explanation: Px85100=120   => p = 12000/85 = 141.17 %

Q: Laxmi and Prasanna set on a journey. Laxmi moves northwards at a speed of 20kmph and Prasanna moves southward at a speed of 30 kmph. How far will be Prasanna from Laxmi after 60 minutes ? 1853 0

  • 1
    24 km
    Correct
    Wrong
  • 2
    50 km
    Correct
    Wrong
  • 3
    42 km
    Correct
    Wrong
  • 4
    30 km
    Correct
    Wrong
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Answer : 2. "50 km"
Explanation :

Answer: B) 50 km Explanation: We know 60 min = 1 hrTotal northward Laxmi's distance = 20kmph x 1hr = 20 kmTotal southward Prasanna's distance = 30kmph x 1hr = 30 kmTotal distance between Prasanna and Laxmi is = 20 + 30 = 50 km.

Q: P alone can do a piece of work in 24 days. The time taken by P to complete one-third of work is equal to time taken by Q to complete half of the work. How many days are required to complete by P and Q working together ? 1853 0

  • 1
    9 3/5 days
    Correct
    Wrong
  • 2
    7 days
    Correct
    Wrong
  • 3
    6 3/7 days
    Correct
    Wrong
  • 4
    8 days
    Correct
    Wrong
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Answer : 1. "9 3/5 days"
Explanation :

Answer: A) 9 3/5 days Explanation: Let the total work be 'W' As per the given information, P can complete the work 'W' in 24 days. => one day work of P = W/24 And also given that, The time taken by P to complete one-third of work is equal to time taken by Q to complete half of the work => PW/3 = QW/2 => P's 1 day =    W/24    ?    =      W/3 =>  ?  = 24W/3W  = 8 => QW/2 = 8 days => Q alone can complete the work W in 16 days => P + Q can complete the work in 1/24 + 1/16 = 5/48 => 48/5 days = 9 3/5 days.

Q: A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red? 1852 0

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

Answer: A) 2/3 Explanation: Given number of balls = 3 + 5 + 7 = 15 One ball is drawn randomly = 15C1 probability that it is either pink or red = 7C1 + 3C115C1 = 7 + 315 = 1015 = 23

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