Quantitative Aptitude Practice Question and Answer

Q: In what ratio must wheat at Rs. 3.20/kg be mixed with wheat at Rs. 2.90/kg so that the mixture be worth Rs. 3/kg? 2343 0

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

Answer: C) 2:1 Explanation: Given rate of wheat at cheap = Rs. 2.90/kg Rate of wheat at cost = Rs. 3.20/kg Mixture rate = Rs. 3/kg Ratio of mixture =            2.90                              3.20                               3 (3.20 - 3 = 0.20)            (3 - 2.90 = 0.10)   0.20 : 0.10 = 2:1   Hence, wheat at Rs. 3.20/kg be mixed with wheat at Rs. 2.90/kg in the ratio of 2:1, so that the mixture be worth Rs. 3/kg.

Q: P and Q can do a work in 4 hours and 12 hours respectively. P starts the work at 9am and they work alternately for one hour each. When will the work be completed ? 2343 0

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

Answer: D) 3 pm Explanation: Work done by P and Q in the first two hours, working alternately = First hour P + Second hour Q ⇒14+112=13 work is completed in 2 hours Then, the total time required to complete the work by P and Q working alternately=2 x 3= 6hours Thus, work will be completed at 3pm.

Q:

Simplification the following equations

2342 0

  • 1
    2955.5
    Correct
    Wrong
  • 2
    2905.5
    Correct
    Wrong
  • 3
    2590.5
    Correct
    Wrong
  • 4
    2905.5
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 2. "2905.5"

Q: A passenger train covers the distance between station K and L, 40 minutes faster than a goods train. Find this distance between K and L if the average speed of the passenger train is 50 km/h and that of goods train is 30 km/h? 2341 0

  • 1
    50 kms
    Correct
    Wrong
  • 2
    48 kms
    Correct
    Wrong
  • 3
    46 kms
    Correct
    Wrong
  • 4
    44 kms
    Correct
    Wrong
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Answer : 1. "50 kms"
Explanation :

Answer: A) 50 kms Explanation: Let the distance be 'd' kms. According to the given data, d30 - d50 = 4060 hrs=> 6d = 300=> d = 50 kms.

Q: Find the missing number in the given number series? 5 11 21 44 ? 175 2340 0

  • 1
    86
    Correct
    Wrong
  • 2
    78
    Correct
    Wrong
  • 3
    94
    Correct
    Wrong
  • 4
    102
    Correct
    Wrong
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Answer : 1. "86"
Explanation :

Answer: A) 86 Explanation: Here the given number series is 5  11  21  44  ?  175   Now the given series follows a pattern, that   x2 + 1, x2 - 1, x2 + 2, x2 - 2, x2 + 3, x2 - 3,...   Then the missing number is x2 - 2   = 44 x 2 - 2 = 88 - 2 = 86   Hence, the missing number in the number series is 86.

Q: A shopkeeper sells one-third of his goods at a profit of 10%, another one-third at a profit of 20%, and the rest at a loss of 6%.What is his overall profit percentage ? 2338 0

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

Answer: B) 8% Explanation: Let the shopkeeper buy 300g for Rs.300. Now he sells 100g for Rs.110, another 100g for Rs120, and the rest 100g for Rs94.    Therefore, the total amount he receives = Rs.110 + Rs.120 + Rs.94 = 324.    Therefore, the shopkeeper spends Rs.300 and gets back Rs.324.   Therefore, his profit percentage = 24300x100 % = 8%

Q: The least number of four digits which is divisible by 4, 6, 8 and 10 is ? 2336 0

  • 1
    1107
    Correct
    Wrong
  • 2
    1080
    Correct
    Wrong
  • 3
    1100
    Correct
    Wrong
  • 4
    1208
    Correct
    Wrong
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Answer : 2. "1080"
Explanation :

Answer: B) 1080 Explanation: LCM of 4, 6, 8 and 10 = 120120) 1000 (8 960 ------ 40 The least number of four digits which is divisible by 4, 6, 8 and 10 => 1000 + 120 - 40 = 1080.

Q: When 0.46 is written in simplest form, the sum of the numerator and the denominator is  ? 2333 0

  • 1
    69
    Correct
    Wrong
  • 2
    73
    Correct
    Wrong
  • 3
    96
    Correct
    Wrong
  • 4
    41
    Correct
    Wrong
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Answer : 2. "73"
Explanation :

Answer: B) 73 Explanation: 0.46 = 46/100 = 23/50. Sum of the numerator and denominator is 23 + 50 = 73

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