Quantitative Aptitude Practice Question and Answer

Q: Fresh grapes contain 60% water, while dry grapes contain 40% water. How many kgs of dry grapes can be obtained by 60 kg of fresh grapes? 3496 0

  • 1
    25 kgs
    Correct
    Wrong
  • 2
    30 kgs
    Correct
    Wrong
  • 3
    35 kgs
    Correct
    Wrong
  • 4
    40 kgs
    Correct
    Wrong
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Answer : 4. "40 kgs"
Explanation :

Answer: D) 40 kgs Explanation: The fruit content in both the fresh fruit and dry fruit is the same. Let 'p' kgs of dry grapes are obtained from the 60 kgs of fresh grapes   => 60 x 40100 = p x 60100=> p = 40 kgs.   Therefore, 40 kgs of Dry grapes are obtained from 60 kgs of Fresh grapes.

Q: A and B together can complete a work in 10 days. A alone can do it in 40 days. In how many days B alone can complete it? 3469 4

  • 1
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    30/7
    Correct
    Wrong
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Answer : 1. ""

Q: A women goes to market with Rs.500 to buy oranges.the prices of the oranges have decreased by 10% so he could buy 2kg more with the amount she had.What was the original price of the oranges ? 3469 0

  • 1
    22.77
    Correct
    Wrong
  • 2
    25.77
    Correct
    Wrong
  • 3
    27.77
    Correct
    Wrong
  • 4
    29.77
    Correct
    Wrong
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Answer : 3. "27.77"
Explanation :

Answer: C) 27.77 Explanation: If the price of the oranges decreases by 10%, the woman would save 10% of the money that is Rs.50 to buy the same amount as before.Now in Rs. 50 she can buy 2 kg more, therefore the current price of 1 kg of oranges is Rs25.Now, this current price is after 10% reduction.       Therefore, the original price =  25/0.9  = Rs. 27.77

Q: Find the number of factors of 9321 ? 3458 0

  • 1
    4
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 4. "8"
Explanation :

Answer: D) 8 Explanation: 9321 = 3 x 13 x 239 = 31 x 13 1 x 239 1 ; add one to all the powers ie., (1+1) x (1+1) x (1+1)= 8 ; we get eight factors.

Q: Complete the missing number in the given series. 5,  20,  76,  (—),  448 3455 0

  • 1
    185
    Correct
    Wrong
  • 2
    225
    Correct
    Wrong
  • 3
    415
    Correct
    Wrong
  • 4
    232
    Correct
    Wrong
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Answer : 2. "225"
Explanation :

Answer: B) 225 Explanation: The series follows the following pattern 5 X 5 – 5 = 20 20 X 4 – 4 = 76 76 X 3 – 3 = 225 225 X 2 – 2 = 448 Hence, the term 225 denoted by (d) completes the series

Q: If a trader sold two cars each at Rs. 325475 and gains 12% on the first and loses 12% on the second, then his profit or loss percent on the whole is ? 3447 0

  • 1
    1.44% loss
    Correct
    Wrong
  • 2
    14.4% loss
    Correct
    Wrong
  • 3
    0%
    Correct
    Wrong
  • 4
    14.4% profit
    Correct
    Wrong
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Answer : 1. "1.44% loss"
Explanation :

Answer: A) 1.44% loss Explanation: SP of each car is Rs. 325475, he gains 12% on first car and losses 12% on second car.In this case, there will be loss and percentage of loss is given by = [(profit%)(loss%)]/100 = (12)(12)/100 % = 1.44%

Q: The average age of a class is 19 years. While the average age of girls is 18 and that of boys is 21. If the number of girls in the class is 16, Find the number of Boys in the class? 3444 0

  • 1
    12
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 3. "8"
Explanation :

Answer: C) 8 Explanation: Let the number of boys = x From the given data, => [21x + 16(18)]/(x+16) = 19 => 21x - 19x = 19(16) - 16(18) => 2x = 16 => x = 8 Therefore, the number of boys in the class = 8.

Q: In an exam, a candidate secured 504 marks out of the maximum mark of 'M'. If the maximum mark 'M' is converted into 800 marks, he would have secured 384 marks. What is the value of 'M' ? 3434 0

  • 1
    910
    Correct
    Wrong
  • 2
    1000
    Correct
    Wrong
  • 3
    970
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 4. "None of the above"
Explanation :

Answer: D) None of the above Explanation: 504/M = 384/800 (504 x 800) / 384 = M M = 1050

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