Averages Quiz – 1

Question 1

Time: 00:00:00
A shopkeeper has a sale of Rs 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs, 6500 ?

4991

4991

3567

3567

7865

7865

4678

4678

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Question 2

Time: 00:00:00
The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?

zero

zero

-1

-1

1

1

none of the above

none of the above

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Question 3

Time: 00:00:00
Of the four numbers, whose average is 60, the first is one-fourth of the sum of the last three. The first number is.

30

30

48

48

57

57

89

89

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Question 4

Time: 00:00:00
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

750

750

285

285

665

665

390

390

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Question 5

Time: 00:00:00
A batsman in his 17th innings makes a score of 85 and thereby increases his average by 3. What is his average after the 17th innings

40

40

42

42

35

35

37

37

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Question 6

Time: 00:00:00
The average age of 36 students in a group is 14 years. When teacher's age is included to it, the average increases by one. What is the teacher's age in years ?

50

50

51

51

61

61

70

70

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Question 7

Time: 00:00:00
A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and x. He found the mean to be 12. What should be the number in place of x ?

7

7

8

8

9

9

10

10

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Question 8

Time: 00:00:00
The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. What is the average of the remaining two numbers ?

3.6

3.6

4.6

4.6

5.6

5.6

7.6

7.6

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Question 9

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 numbers is

40

40

45

45

30

30

35

35

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Question 10

Time: 00:00:00
A motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr.  His average speed for the whole journey in km/hr is

35

35

37.5

37.5

40

40

30

30

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