Average Practice Question and Answer

Q:

In a school with 600 students the average age of the boys is 12 years and that of the girl is 11 years. If he average age of the students is 11 years 9 months, then the number of girls in the school is

1805 0

  • 1
    150
    Correct
    Wrong
  • 2
    250
    Correct
    Wrong
  • 3
    350
    Correct
    Wrong
  • 4
    450
    Correct
    Wrong
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Answer : 1. "150"

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? 1800 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:

Find the average of the following sets of numbers.

693, 456, 876, 532, 934, 691, 596, 398, 682

1780 0

  • 1
    550.50
    Correct
    Wrong
  • 2
    750.80
    Correct
    Wrong
  • 3
    650.89
    Correct
    Wrong
  • 4
    725.90
    Correct
    Wrong
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Answer : 3. "650.89"

Q: The average daily income of A, B and C is Rs.450. If the average daily income of A and B is Rs.400. B and C is Rs.430; then the daily income of B will be- 1770 0

  • 1
    Rs.300
    Correct
    Wrong
  • 2
    Rs.310
    Correct
    Wrong
  • 3
    Rs.415
    Correct
    Wrong
  • 4
    Rs.425
    Correct
    Wrong
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Answer : 2. "Rs.310"
Explanation :

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Q:

Average of 11 number is 30. If the average of first 10 numbers is 22, then find the 11th number?

1752 0

  • 1
    215
    Correct
    Wrong
  • 2
    110
    Correct
    Wrong
  • 3
    105
    Correct
    Wrong
  • 4
    90
    Correct
    Wrong
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Answer : 2. "110"

Q:

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

1718 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:

In the afternoon, a student read 100 pages at the rate of 60 pages per hour. In the evening, when she was tired, she read 100 more pages at the rate of 40 pages per hour. What was her average rate of reading the pages per hour? 

1707 0

  • 1
    48
    Correct
    Wrong
  • 2
    50
    Correct
    Wrong
  • 3
    60
    Correct
    Wrong
  • 4
    70
    Correct
    Wrong
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Answer : 1. "48 "

Q:

Subjects, there were 9 boys and some girls. In a test, the mean score obtained by the boys was 13 while that obtained by the girls was 15. If the overall average was 14.28, what was the total number of students in the class? 

1702 0

  • 1
    24
    Correct
    Wrong
  • 2
    26
    Correct
    Wrong
  • 3
    27
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
  • Show Answer
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Answer : 4. "25"

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