Quantitative Aptitude Practice Question and Answer

Q:What was the day of the week on 17th June, 1998 ? 2735 6

  • 1
    Monday
    Correct
    Wrong
  • 2
    Tuesday
    Correct
    Wrong
  • 3
    Wednesday
    Correct
    Wrong
  • 4
    Friday
    Correct
    Wrong
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Answer : 3. "Wednesday"
Explanation :

Answer: C) Wednesday Explanation: 17th June, 1998 = (1997 years + Period from 1.1.1998 to 17.6.1998)Odd days in 1600 years = 0Odd days in 300 years = 197 years has 24 leap years + 73 ordinary years.Number of odd days in 97 years ( 24 x 2 + 73) = 121 = 2 odd days.Jan. Feb. March. April. May. June.(31 + 28 + 31 + 30 + 31 + 17) = 168 days168 days = 24 weeks = 0 odd day.Total number of odd days = (0 + 1 + 2 + 0) = 3.Given day is Wednesday.

Q:If the true discount on sum due 2 years hence at 14% per annum be Rs. 168, the sum due is ? 3302 4

  • 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: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: 1805 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:

The total number of females are what percent of the total number of males in the organization?

4612 2

  • 1
    90
    Correct
    Wrong
  • 2
    70
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    60
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "80"

Q:

What should come in place of the question mark(?) in the following number series?
1, 5, 13 , 29 ,? , 125 , 253

2093 2

  • 1
    83
    Correct
    Wrong
  • 2
    69
    Correct
    Wrong
  • 3
    61
    Correct
    Wrong
  • 4
    65
    Correct
    Wrong
  • 5
    81
    Correct
    Wrong
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Answer : 3. "61"
Explanation :

The difference between number will be 4, 8, 16, 32, 64

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Answer : 3. "118.08L"
Explanation :

Answer: C) 118.08L Explanation: The amount of petrol left after 4 operations   = 200 × 1-402004   = 200 × 454   = 200 × 256625   = 81.92 litres   Hence the amount of kerosene = 200 - 81.92 = 118. 08 litres

Q:A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point C which is at midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B ? 4179 1

  • 1
    180 km
    Correct
    Wrong
  • 2
    160 km
    Correct
    Wrong
  • 3
    140 km
    Correct
    Wrong
  • 4
    120 km
    Correct
    Wrong
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Answer : 1. "180 km"
Explanation :

Answer: A) 180 km Explanation: Speed in downstream = (14 + 4) km/hr = 18 km/hr; Speed in upstream = (14 – 4) km/hr = 10 km/hr. Let the distance between A and B be x km. Then, x/18 + (x/2)/10 = 19 ⇔ x/18 + x/20 = 19 ⇒ x = 180 km.

Q:K can build a wall in 30 days. L can demolish that wall in 60 days. If K and L work on alternate days, when will the wall be completed ? 297 1

  • 1
    120 days
    Correct
    Wrong
  • 2
    119 days
    Correct
    Wrong
  • 3
    118 days
    Correct
    Wrong
  • 4
    117 days
    Correct
    Wrong
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Answer : 4. "117 days"
Explanation :

Answer: D) 117 days Explanation: K's work in a day(1st day) = 1/30L's work in a day(2nd day)= -1/60(demolishing)hence in 2 days, combined work= 1/30 - 1/60 =1/60since both works alternatively, K will work in odd days and L will work in even days.1/60 unit work is done in 2 days58/60 unit work will be done in 2 x 58 days = 116 daysRemaining work = 1-58/60 = 1/30Next day, it will be K's turn and K will finish the remaining 1/30 work.hence total days = 116 + 1 = 117.

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