Average Questions Practice Question and Answer

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.

1572 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:

The average of seven numbers is 18. If one of the number is 17 and if it is replaced by 31, then the average becomes: 

1568 0

  • 1
    20
    Correct
    Wrong
  • 2
    21
    Correct
    Wrong
  • 3
    21.5
    Correct
    Wrong
  • 4
    19.5
    Correct
    Wrong
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Answer : 1. "20 "

Q:

The average of x numbers is 48. If of the numbers are increased by 51 each and remaining are decreased by 71 each, then what is the new average?

1568 0

  • 1
    51
    Correct
    Wrong
  • 2
    49
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    46
    Correct
    Wrong
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Answer : 1. "51"

Q: The average of first three numbers is three times of the fourth number. If the average of all four numbers is 5, then find the fourth number. 1567 0

  • 1
    4.5
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 4. "4"
Explanation :

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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?

1557 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:

Find the average of the following set of numbers.
132, 148, 164, 128, 120, 136

1555 0

  • 1
    138
    Correct
    Wrong
  • 2
    144
    Correct
    Wrong
  • 3
    142
    Correct
    Wrong
  • 4
    136
    Correct
    Wrong
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Answer : 1. "138"

Q:

A batsman makes a score of 87 runs in the 17th match and thus  increases his average by 3. Find his average after 17th match.

1554 1

  • 1
    36
    Correct
    Wrong
  • 2
    37
    Correct
    Wrong
  • 3
    38
    Correct
    Wrong
  • 4
    39
    Correct
    Wrong
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Answer : 4. "39"

Q:

The average of four consecutive even numbers is 15. The 2nd highest number is: 

1552 0

  • 1
    14
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    18
    Correct
    Wrong
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Answer : 2. "16"

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