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Averages Quiz-1

Question 1

Time: 00:00:00
The average weight of a class of 10 students is increased by 2 kg when one student of 30kg left and and another student joined. After a few months, this new student left and another student joined whose weight was 10 less than the student who left now. What is the difference between the final and initial averages?







11

11

1

1

111

111

121

121

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Question 2

Time: 00:00:00
If the Date of birth, of four of them are prime numbers, then find the maximum average sum of their dates of birth.

26.4

26.4

27.2

27.2

28

28

None of these

None of these

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Question 3

Time: 00:00:00
The Average age Group of 15 persons is 25 years and 5 months. Two Persons, each 40 years old,left the group. What will be the average age of the remaining persons in the group.

24.25 Years

24.25 Years

23.17 Years

23.17 Years

25.35 Years

25.35 Years

25 Years

25 Years

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Question 4

Time: 00:00:00
Aman can type a sheet in 10 Minutes,Baman in 20 minutes and Chaman in 30 Minutes.The Average number of sheets typed per hour per typist for all three typists is

55/9

55/9

30/7

30/7

11/3

11/3

32/11

32/11

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Question 5

Time: 00:00:00
There were 30 Students in a Hostel. Due to the admission of 20 new students , the expenses of the mess increase by 1600 per day while the average expenditure per head diminished by ₹8. What was the original expenditure of the mess?

1600

1600

2000

2000

3000

3000

1200

1200

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Question 6

Time: 00:00:00
Direction for Question 6-7:-In 2001 there were 6 members in Binod's Family and their average age was 28 years. He got married between 2001 and 2004 and in 2004 there was an addition of a child in his family. In 2006 , the avearge age of his family is 32 years.

Q6. What is the present age (in 2006) of Binod's wife (in years) is:-

52 Years

52 Years

56 Years

56 Years

50 Years

50 Years

45 Years

45 Years

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Question 7

Time: 00:00:00
If Binod's age is greater than his wife and in 2001 his age was a prime number then what is teh minimum possible value of Binod's present age? (In 2006) ( In years).

54 Years

54 Years

52 Years

52 Years

56 Years

56 Years

58 Years

58 Years

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Question 8

Time: 00:00:00
If the average age of 21,23,x ,24,27 lies in between 25,28 (includng both). Find the number of possible integral value of x?

56

56

25

25

16

16

48

48

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Question 9

Time: 00:00:00
Rozer a Great tennis player has 10 boxes with him, which have an average of 25 tennis balls per box. If each box has at least 8 balls and no two boxes have an equal number of balls, then what is the maximum possible number of balls in any box?

142

142

128

128

108

108

108

108

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Question 10

Time: 00:00:00
There are four members q,x,y,z. If the sum of all possible distinct groups, each having two numbers from amongst w,x,y,z is 1440,then what is the average of these four members?

110

110

130

130

120

120

80

80

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["0","40","60","80","100"]
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