Quantitative Aptitude Practice Question and Answer

Q: The ratio of earnings of A and B is 4:5. If the earnings of A increase by 20% and the earnings of B decrease by 20%, the new ratio of their earnings becomes 6:5. What are A's earnings? 1716 0

  • 1
    Rs.22,000
    Correct
    Wrong
  • 2
    Rs.27,500
    Correct
    Wrong
  • 3
    Rs. 26,400
    Correct
    Wrong
  • 4
    Cannot be determined
    Correct
    Wrong
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Answer : 4. "Cannot be determined"
Explanation :

Answer: D) Cannot be determined Explanation:

Q: Sixty men can stitch 150 shirts in 30 days working 8 hours a day. In how many days can 35 men stitch 200 shirts working 6 hours a day ? 1712 0

  • 1
    87.5
    Correct
    Wrong
  • 2
    89
    Correct
    Wrong
  • 3
    91.5
    Correct
    Wrong
  • 4
    93.5
    Correct
    Wrong
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Answer : 3. "91.5"
Explanation :

Answer: C) 91.5 Explanation: We have M1 D1 H1 / W1 = M2 D2 H2 / W2 (Variation rule)(60 x 30 x 8)/ 150 = (35 x D2 x 6) / 200 D2 = (60 x 30 x 8 x 200) / (150 x 35 x 6) => D2 = 91.42 days =~ 91.5 days.

Q: 1397 x 1397 = ? Here what replaces '?' 1711 0

  • 1
    1951609
    Correct
    Wrong
  • 2
    1821504
    Correct
    Wrong
  • 3
    2031489
    Correct
    Wrong
  • 4
    1847879
    Correct
    Wrong
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Answer : 1. "1951609"
Explanation :

Answer: A) 1951609 Explanation: 1397 x 1397

Q: A letter lock consists of three rings each marked with six different letters. The number of distinct unsuccessful attempts to open the lock is at the most  ? 1711 0

  • 1
    215
    Correct
    Wrong
  • 2
    268
    Correct
    Wrong
  • 3
    254
    Correct
    Wrong
  • 4
    216
    Correct
    Wrong
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Answer : 1. "215"
Explanation :

Answer: A) 215 Explanation: Since each ring consists of six different letters, the total number of attempts possible with the three rings is = 6 x 6 x 6 = 216. Of these attempts, one of them is a successful attempt.   Maximum number of unsuccessful attempts = 216 - 1 = 215.

Q: In a test, minimum passing percentage for girls and boys is 35% and 40% respectively. A boy scored 483 marks and failed by 117 marks. What is the minimum passing marks for girls ? 1711 0

  • 1
    625
    Correct
    Wrong
  • 2
    525
    Correct
    Wrong
  • 3
    425
    Correct
    Wrong
  • 4
    325
    Correct
    Wrong
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Answer : 2. "525"
Explanation :

Answer: B) 525 Explanation: Given 40% minimum passing marks for boys = 483 + 117 = 600=> 1% = 600/40 => 100% = 600 x 100/40 = 1500Minimum passing marks for girls = 35% of 1500 = 35 x 1500/100 = 525.

Q: If Hema walks at 12 km/hr instead of 8 km/hr, she would have walked 20 km more. The actual distance travelled by Hema is ? 1710 0

  • 1
    40 kms
    Correct
    Wrong
  • 2
    30 kms
    Correct
    Wrong
  • 3
    46 kms
    Correct
    Wrong
  • 4
    32 kms
    Correct
    Wrong
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Answer : 1. "40 kms"
Explanation :

Answer: A) 40 kms Explanation: Let the actual distance travelled be x km. Then x/8=(x+20)/12 => 12x = 8x + 160=> 4x = 160=> x = 40 km.

Q: Anil purchases two books for Rs.100. He sells first at loss of 5% and second al 20% profit. If he gets Overall profit of 5% then what is cost of first book? 1710 0

  • 1
    58
    Correct
    Wrong
  • 2
    60
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    45
    Correct
    Wrong
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Answer : 2. "60"
Explanation :

Answer: B) 60 Explanation: -5-----------------------5-------------------20 5-(-5) = 10 20-5= 15 Ratio of cost price of book1 and book2 = 3:2  Then cost price of book 1 is given by (3/5) x 100 = Rs. 60.

Q: Find the next number in the number series? 1, 4, 12, 32, ? 1709 0

  • 1
    80
    Correct
    Wrong
  • 2
    100
    Correct
    Wrong
  • 3
    192
    Correct
    Wrong
  • 4
    169
    Correct
    Wrong
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Answer : 1. "80"
Explanation :

Answer: A) 80 Explanation: Next number of the sequence 1, 4, 12, 32,... 1 = 2 x 20 4 = 2 x 21 12 = 3 x 22 32 = 4 x 23 80 = 5 x 24.

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