Average Practice Question and Answer

Q: The average of marks obtained by 120 candidates in an examination is 35. The average of marks obtained by passed candidates is 39 and that of for failed candidates is 15. What is the no. of passed candidates? 1751 0

  • 1
    100
    Correct
    Wrong
  • 2
    120
    Correct
    Wrong
  • 3
    150
    Correct
    Wrong
  • 4
    140
    Correct
    Wrong
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Answer : 1. "100"
Explanation :

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Q:

A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the average score for the team would have been 84. The number of points the team scored was

1744 0

  • 1
    672
    Correct
    Wrong
  • 2
    665
    Correct
    Wrong
  • 3
    645
    Correct
    Wrong
  • 4
    588
    Correct
    Wrong
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Answer : 2. "665"

Q:

When the average age of husband, wife and their son was 42 years, the son got married and a child was born just one year after marriage. When the child turned to be 5 years, the average age of the family becomes 36 years. What was the age of daughter-in-law at the time of marriage?

1736 0

  • 1
    24 year
    Correct
    Wrong
  • 2
    28 year
    Correct
    Wrong
  • 3
    30 year
    Correct
    Wrong
  • 4
    25 year
    Correct
    Wrong
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Answer : 4. "25 year"

Q:

The average of 8 numbers is 38.4. Out of these numbers, the average of 7 number is 39.2. The 8th numbers

1723 1

  • 1
    33.7
    Correct
    Wrong
  • 2
    31.5
    Correct
    Wrong
  • 3
    35.2
    Correct
    Wrong
  • 4
    32.8
    Correct
    Wrong
  • 5
    34.5
    Correct
    Wrong
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Answer : 4. "32.8 "

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?

1721 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: The average of nine numbers is 30. The average of first five numbers is 25 and that of for last three numbers is 35, then what will be sixth number? 1720 0

  • 1
    20
    Correct
    Wrong
  • 2
    30
    Correct
    Wrong
  • 3
    40
    Correct
    Wrong
  • 4
    50
    Correct
    Wrong
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Answer : 3. "40"
Explanation :

undefined

Q:

The average weight of a group of 20 boys was calculated to be 89.4 kg and it was later discovered that one weight was misread as 78 kg instead of 87 kg. The correct average weight is 

1716 0

  • 1
    89.55 kg
    Correct
    Wrong
  • 2
    89.85 kg
    Correct
    Wrong
  • 3
    88.95 kg
    Correct
    Wrong
  • 4
    89.25 kg
    Correct
    Wrong
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Answer : 2. "89.85 kg"

Q:

A man spends Rs. 1800 monthly on an average for the first four months and Rs. 2000 monthly for the next eight months and saves Rs. 5600 a year. His average monthly income is

1712 0

  • 1
    Rs. 2000
    Correct
    Wrong
  • 2
    Rs. 2200
    Correct
    Wrong
  • 3
    Rs. 2400
    Correct
    Wrong
  • 4
    Rs. 2600
    Correct
    Wrong
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Answer : 3. "Rs. 2400"

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