Average Questions Practice Question and Answer

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.

1188 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:

Mrs. Reena’s family has 10 males and a few women, the average monthly consumption of Wheat per head is 8 kg. If the average monthly consumption of Wheat per head be 10 kg in the case of males and 6 kg in the case of women, find the number of women in Reena’s family?

1053 0

  • 1
    2
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    10
    Correct
    Wrong
  • 5
    8
    Correct
    Wrong
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Answer : 4. "10"

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 ? 1354 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:

If a,b,c,d,e,f,g  are seven consecutive odd number, their average is

3329 0

  • 1
    (a+6)
    Correct
    Wrong
  • 2
    (abcdefg/7)
    Correct
    Wrong
  • 3
    (a+b+c+d+e+f+g)/7
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "(a+6)"

Q:

A batsman in his 20th innings make a score of 110 and there by increases his average by 4. What is his average after 20 innings? 

2976 0

  • 1
    34
    Correct
    Wrong
  • 2
    43
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    30
    Correct
    Wrong
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Answer : 1. "34 "

Q:

Find the average of the following set of numbers 148, 88, 184, 166, 96, 122

1648 0

  • 1
    146
    Correct
    Wrong
  • 2
    142
    Correct
    Wrong
  • 3
    136
    Correct
    Wrong
  • 4
    132
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 5. "None of these"

Q:

The average age of 30 boys in a class is 15 years. One boy, aged 20 years, left the class, but two new boys came in his place whose age differs by 5 years. If the average age of all the boys now in the class becomes 15 years, the age of the younger newcomer is: 

1811 0

  • 1
    20 years
    Correct
    Wrong
  • 2
    15 years
    Correct
    Wrong
  • 3
    10 years
    Correct
    Wrong
  • 4
    8 years
    Correct
    Wrong
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Answer : 2. "15 years "

Q:

The average weight of 14 children is 22 kg. If the weight of the teacher is also included, then the average weight becomes 23 kg. What is the teacher's weight?

3415 0

  • 1
    34 kg
    Correct
    Wrong
  • 2
    37 kg
    Correct
    Wrong
  • 3
    40 kg
    Correct
    Wrong
  • 4
    35 kg
    Correct
    Wrong
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Answer : 2. "37 kg"

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