Average Questions Practice Question and Answer

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? 1413 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 12 men is 56 years. Two members of 60 years and 52 years die. What will the average age of the remaining members? 1332 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: The average of 11 results is 50. If the average of first six results is 49 and and that of last six is 53, find the sixth result? 1389 0

  • 1
    56
    Correct
    Wrong
  • 2
    62
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    58
    Correct
    Wrong
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Answer : 2. "62"
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? 2285 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 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? 1312 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: The twice of sum of the ages of a father and his son is 8 times the age of the son. If the average age of the father and the son is 30 years, what is father's age ? 1322 0

  • 1
    42 yrs
    Correct
    Wrong
  • 2
    45 yrs
    Correct
    Wrong
  • 3
    36 yrs
    Correct
    Wrong
  • 4
    38 yrs
    Correct
    Wrong
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Answer : 2. "45 yrs"
Explanation :

Answer: B) 45 yrs Explanation: Let father's age be x year and son's age be y year. According to question, 2(x+y) = 8y _______(I) and (x+y)/2 = 30 => x+y = 60 years__________(II) From equation (I) and (II) 8 y = 120 y = 15 years, Hence x = 45 years.

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? 1648 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 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? 1136 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"

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