Average Practice Question and Answer

Q: Average height of 40 girls is 148 cm. Average of remaining number is 150 cm. What will be the average of total class if there are 50 girls in the class? 1643 0

  • 1
    148.8 cm
    Correct
    Wrong
  • 2
    149.2 cm
    Correct
    Wrong
  • 3
    148.4 cm
    Correct
    Wrong
  • 4
    144 cm
    Correct
    Wrong
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Answer : 3. "148.4 cm"
Explanation :

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Q: Average runs of a player in 20 innings is 40.5. His lowest score was 5 and highest was 103. What is the average of remaining inning? 2281 0

  • 1
    36
    Correct
    Wrong
  • 2
    38
    Correct
    Wrong
  • 3
    39
    Correct
    Wrong
  • 4
    41
    Correct
    Wrong
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Answer : 3. "39"

Q: Average age of 12 men is 56 years. Two members of 60 years and 52 years die. What will the average age of the remaining members? 1327 0

  • 1
    54 years
    Correct
    Wrong
  • 2
    55 years
    Correct
    Wrong
  • 3
    56 years
    Correct
    Wrong
  • 4
    58 years
    Correct
    Wrong
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Answer : 3. "56 years "
Explanation :

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Q: Average weight of 24 students is 32 kg. If increase by 2 kg when a teacher joins the group. What will be the weight of teacher? 1306 0

  • 1
    82 kg
    Correct
    Wrong
  • 2
    84 kg
    Correct
    Wrong
  • 3
    80 kg
    Correct
    Wrong
  • 4
    85 kg
    Correct
    Wrong
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Answer : 1. "82 kg"

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? 1129 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: Average weight of 10 men increases by 3.5 kg when a man of 50 kg is replaced by a new man what is the age of new person? 1404 0

  • 1
    85 kg
    Correct
    Wrong
  • 2
    84 kg
    Correct
    Wrong
  • 3
    82 kg
    Correct
    Wrong
  • 4
    80 kg
    Correct
    Wrong
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Answer : 1. "85 kg"
Explanation :

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Q: Average age of 21 men reduces by 1 year when a man of 32 years is replaced by a child. What is the age of that child? 1227 0

  • 1
    10 years
    Correct
    Wrong
  • 2
    11 years
    Correct
    Wrong
  • 3
    9 years
    Correct
    Wrong
  • 4
    8 years
    Correct
    Wrong
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Answer : 2. "11 years"
Explanation :

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Q: There are 40 boys in a class and average age of the class is 16 years. A boy of 17 years of age is replaced by another one, as a result average age becomes 15.875 years. Find the age of the new boy? 1344 0

  • 1
    12 years
    Correct
    Wrong
  • 2
    14.5 years
    Correct
    Wrong
  • 3
    15 years
    Correct
    Wrong
  • 4
    17 years
    Correct
    Wrong
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Answer : 1. "12 years"
Explanation :

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