Average Practice Question and Answer

Q:

A party for 50 people was organized at their own expense. 48 of them paid Rs 950 each, while the other two paid Rs 1200 more than the group's average expenditure. The total expenditure incurred was.

2228 0

  • 1
    75,000
    Correct
    Wrong
  • 2
    40,000
    Correct
    Wrong
  • 3
    25,000
    Correct
    Wrong
  • 4
    50,000
    Correct
    Wrong
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Answer : 4. "50,000"

Q:

There are 45 male and 15 female employees in an office. If the mean salary of the 60 employees is Rs 4800 and the mean salary of the male employees is Rs 5000, then the mean salary of the female employees is

2196 0

  • 1
    Rs 4200
    Correct
    Wrong
  • 2
    Rs 4500
    Correct
    Wrong
  • 3
    Rs 5600
    Correct
    Wrong
  • 4
    Rs 6000
    Correct
    Wrong
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Answer : 1. "Rs 4200"

Q:

The average of eight successive numbers is 6.5. The average of the smallest and the greatest numbers among them will be: 

2085 0

  • 1
    4
    Correct
    Wrong
  • 2
    6.5
    Correct
    Wrong
  • 3
    7.5
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 2. "6.5"

Q:

The average of nine consecutive odd numbers is 53. The least odd number is: 

1924 0

  • 1
    22
    Correct
    Wrong
  • 2
    27
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    45
    Correct
    Wrong
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Answer : 4. "45 "

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:

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

1703 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:

Sunil has 40 coins of 10 paise and 25 paise each. If he has Rs 7.75, then how many 10 paise coins are there?

1698 0

  • 1
    20
    Correct
    Wrong
  • 2
    15
    Correct
    Wrong
  • 3
    10
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 2. "15"

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? 1677 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"
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