RRB (NTPC) Practice Question and Answer

Q: A and B can together finish a work in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job? 1194 0

  • 1
    40
    Correct
    Wrong
  • 2
    50
    Correct
    Wrong
  • 3
    54
    Correct
    Wrong
  • 4
    60
    Correct
    Wrong
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Answer : 4. "60"

Q: The speed of three cars are in the ratio 5:4:6. The ratio between the time taken by them to travel the same distance is: 1216 0

  • 1
    5:4:6
    Correct
    Wrong
  • 2
    6:4:5
    Correct
    Wrong
  • 3
    10:12:15
    Correct
    Wrong
  • 4
    12:15:10
    Correct
    Wrong
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Answer : 4. "12:15:10"

Q: A student has to obtain 33% of the total marks to pass. He got 125 marks and failed by 40 marks. The maximum marks are: 1140 0

  • 1
    300
    Correct
    Wrong
  • 2
    500
    Correct
    Wrong
  • 3
    800
    Correct
    Wrong
  • 4
    1000
    Correct
    Wrong
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Answer : 2. "500"

Q: A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The Average speed for the the first 320 km of the tour is: 1193 0

  • 1
    35.55 km/hr
    Correct
    Wrong
  • 2
    36 km/hr
    Correct
    Wrong
  • 3
    71.11 km/hr
    Correct
    Wrong
  • 4
    71 km/hr
    Correct
    Wrong
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Answer : 3. "71.11 km/hr"

Q: What is the least number to be added to 1500 to make it a perfect square? 2022 0

  • 1
    21
    Correct
    Wrong
  • 2
    35
    Correct
    Wrong
  • 3
    43
    Correct
    Wrong
  • 4
    69
    Correct
    Wrong
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Answer : 1. "21"

Q: If the numerator of a fraction is increased by 20% and the denominator is not changed, the resultant fraction thus obtained is \({2\over3}\). What was the original fraction? 1368 0

  • 1
    \({3\over8}\)
    Correct
    Wrong
  • 2
    \({5\over8}\)
    Correct
    Wrong
  • 3
    \({4\over9}\)
    Correct
    Wrong
  • 4
    \({5\over9}\)
    Correct
    Wrong
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Answer : 4. "\({5\over9}\)"

Q: The difference between a number and its two-fifth is 510. What is 10% of that number? 1529 0

  • 1
    12.75
    Correct
    Wrong
  • 2
    85
    Correct
    Wrong
  • 3
    204
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "85"

Q: A sum was put at simple interest at a certain rate for 2 years. Had it been put at a 3% higher rate; it would have fetched Rs. 72 more. The sum is: 1431 1

  • 1
    Rs.1200
    Correct
    Wrong
  • 2
    Rs.1500
    Correct
    Wrong
  • 3
    Rs. 1600
    Correct
    Wrong
  • 4
    Rs. 1800
    Correct
    Wrong
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Answer : 1. "Rs.1200"

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