Average Questions Practice Question and Answer

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?

1398 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 weight of Sudesh, Jyothi and Ritu is 89 kg. If the average weight of Sudesh and Jyothi be 98 kg and that of Jyothi and Ritu be 83 kg, then the weight of Jyothi is

1397 0

  • 1
    58
    Correct
    Wrong
  • 2
    56
    Correct
    Wrong
  • 3
    66
    Correct
    Wrong
  • 4
    95
    Correct
    Wrong
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Answer : 4. "95"

Q:

The average of three consecutive odd numbers is 12 more than one third of the first of these numbers. What is the last of the three numbers?

1381 0

  • 1
    19
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    15
    Correct
    Wrong
  • 4
    17
    Correct
    Wrong
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Answer : 1. "19 "

Q: The average value found for 20 observations was 75. It was noticed later that 97 was read as 79. So, what was the correct average value? 1366 0

  • 1
    75.7
    Correct
    Wrong
  • 2
    75.8
    Correct
    Wrong
  • 3
    75.9
    Correct
    Wrong
  • 4
    75.6
    Correct
    Wrong
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Answer : 3. "75.9"
Explanation :

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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:

1366 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

1362 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 of 8 numbers is 38.4. Out of these numbers, the average of 7 number is 39.2. The 8th numbers

1359 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:

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

1357 0

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

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