Average Questions Practice Question and Answer

Q:

The average weight of 15 oarsmen in a boat is increased by 1.6 kg when one of the crews, whose weighs 42 kg is replaced by a new man. Find the weight of the new man (in kg). 

1295 0

  • 1
    66
    Correct
    Wrong
  • 2
    43
    Correct
    Wrong
  • 3
    67
    Correct
    Wrong
  • 4
    65
    Correct
    Wrong
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Answer : 1. "66"

Q:

The average score obtained by Sandeep in 12 Tests is 25. Rumella has an average of 23 marks so far, but has competed in only 8 Tests. What average will Rumela have to earn in the remaining 4 Tests to be equal to Raghuveer's average?

1286 0

  • 1
    28
    Correct
    Wrong
  • 2
    29
    Correct
    Wrong
  • 3
    26
    Correct
    Wrong
  • 4
    27
    Correct
    Wrong
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Answer : 2. "29"

Q:

If the average marks obtained by Balu, Benjamin and Babur is 80 and the average marks of Benjamin and Babur is 83, find marks obtained by Balu.

1271 0

  • 1
    80
    Correct
    Wrong
  • 2
    83
    Correct
    Wrong
  • 3
    90
    Correct
    Wrong
  • 4
    74
    Correct
    Wrong
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Answer : 4. "74 "

Q:

The average of the squares of first ten natural numbers is 

1270 0

  • 1
    37.5
    Correct
    Wrong
  • 2
    38.5
    Correct
    Wrong
  • 3
    35.5
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
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Answer : 2. "38.5"

Q:

The average marks obtained by Saloni in four papers is 51, and in the fifth paper she gets 56 marks. Find her new average in all five papers.

1267 0

  • 1
    51
    Correct
    Wrong
  • 2
    52
    Correct
    Wrong
  • 3
    49
    Correct
    Wrong
  • 4
    50
    Correct
    Wrong
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Answer : 2. "52"

Q: Average age of a couple before 4 years, at the time of their marriage was 27 years. Now, the average age of the couple including their new born baby is 21 years. Find the present age of the baby? 1264 0

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

Q:

A car travel to a place 150 km away at an average speed of 50 km/hr and returns it 30 km/hr. What is the average speed of the whole journey?

1257 1

  • 1
    35.5 km/hr
    Correct
    Wrong
  • 2
    37.5 km/hr
    Correct
    Wrong
  • 3
    40.5 km/hr
    Correct
    Wrong
  • 4
    33.5 km/hr
    Correct
    Wrong
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Answer : 2. "37.5 km/hr"

Q: The average of three numbers is 40. First of them is two times of the seconds and the second is three time of the third. So, what is the difference between the largest and smallest number? 1253 0

  • 1
    30
    Correct
    Wrong
  • 2
    36
    Correct
    Wrong
  • 3
    46
    Correct
    Wrong
  • 4
    60
    Correct
    Wrong
  • Show Answer
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Answer : 4. "60"
Explanation :

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