Averages Quiz 1

Question 1

Time: 00:00:00
The average weight of a group of persons increased from 48 kg to 51 kg, when two persons weighing 78 kg and 93 kg join the group. Find the initial number of members in the group?

21

21

22

22

23

23

24

24

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Question 2

Time: 00:00:00
The average temperature of June, July, and August was 31 degrees. The average temperature for July, August, and September was 30 degrees. If the temperature of June was 30 degrees, find the temperature of September (in degrees).

25

25

26

26

27

27

28

28

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Question 3

Time: 00:00:00
Four of the six numbers is 1867456,1993764,2019657,2025189, 2109472,2121346 have a mean of 2068916.What is the mean of other two numbers

2006710.5

2006710.5

2067330.5

2067330.5

1930610

1930610

2022423

2022423

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Question 4

Time: 00:00:00
A packet of toffees is distributed in a class. A child who receives one-eighth of the total number of toffees get five times the average number of toffees received by the remaining children in the class. What is the strength of the class?

40

40

35

35

36

36

none of the above

none of the above

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Question 5

Time: 00:00:00
If P=(102 power x) - (98 power x) and x is a natural number greater than zero. how many values exist at units place of P?

3

3

5

5

4

4

8

8

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Question 6

Time: 00:00:00
If the arithmetic mean of seventy five numbers is calculated, it is 35. If each number is increased by 5, then mean of new number is:

70

70

40

40

90

90

30

30

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Question 7

Time: 00:00:00
Average of age 3 men L, M and N is 48 years. Another man O joins the group and the average becomes 44 years. If another man P whose age is 3 years more than that of O replaces L. Then the average age of M, N, O and P becomes 43 years then the age of L is?

39

39

36

36

35

35

40

40

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Question 8

Time: 00:00:00
A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half. The number of pupils in the class is?

47

47

44

44

39

39

40

40

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Question 9

Time: 00:00:00
Average weight of 25 boys in a class is 48 kgs. The average weight of the class of 40 students is 45 kgs. What is the average weight of the 15 girls in the class? 39 kgs

42 kgs

42 kgs

42.5 kgs

42.5 kgs

40 kgs

40 kgs

44 kgs

44 kgs

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Question 10

Time: 00:00:00
The mean weight of a group of seven boys is 56 kg. The individual weights (in kg) of six of them are 52, 57, 55, 60, 59 and 55. Find the weight of the seventh boy?

57 kg

57 kg

54 kg

54 kg

53 kg

53 kg

55 kg

55 kg

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