Average Practice Question and Answer

Q: The average of goods produced by a company every month is 4000 of average of last 3 month’s production. How many average goods should they produce every month in next 9 months so their monthly average production during a year will be 4375? 1309 1

  • 1
    4500
    Correct
    Wrong
  • 2
    4600
    Correct
    Wrong
  • 3
    4680
    Correct
    Wrong
  • 4
    4710
    Correct
    Wrong
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Answer : 1. "4500"
Explanation :

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Q:

of the three numbers, the first is 3 times the second and the third is 5 times the first. If the average of the three numbers is 57, the difference between the largest and the smallest number is: 

1304 0

  • 1
    9
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    126
    Correct
    Wrong
  • 4
    135
    Correct
    Wrong
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Answer : 3. "126"

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? 1304 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:

Ram has 5 daughters. The average age of these 5 sisters is 28 years. The youngest one is 16 years old. What was the average age of the 4 daughters before the youngest one was born?

1280 0

  • 1
    28 years
    Correct
    Wrong
  • 2
    15 years
    Correct
    Wrong
  • 3
    31 years
    Correct
    Wrong
  • 4
    16 years
    Correct
    Wrong
  • 5
    20 years
    Correct
    Wrong
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Answer : 2. "15 years"

Q:

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

1280 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 age of students in a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:

1280 0

  • 1
    1: 4
    Correct
    Wrong
  • 2
    4 : 2
    Correct
    Wrong
  • 3
    2 : 3
    Correct
    Wrong
  • 4
    3 : 4
    Correct
    Wrong
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Answer : 3. "2 : 3"

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

1263 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"

Q:

The average age of 30 students is 9 years. If the age of their teacher is included, the average age become 10 years. The age of the teacher ( in years ) is

1260 0

  • 1
    34 years
    Correct
    Wrong
  • 2
    36 years
    Correct
    Wrong
  • 3
    37 years
    Correct
    Wrong
  • 4
    40 years
    Correct
    Wrong
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Answer : 4. "40 years"

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