Problems Based on Application of Average in Everyday Life

Q. Runs scored by 11 players in a cricket match is given below. Find the average.
7, 16, 121, 51, 101, 81, 1, 16, 9, 11, 16

1. 38.08
2. 39.09
3. 37
4. 36

Q.

The following are the marks obtained (out of 100) by students in Mathematics in a particular class :

82 , 76 , 90 , 64 , 80 , 96 , 100 , 52 , 68 and 88

What is the average mark obtained ?

1. 82

2. 76.5

3. 79.6

4. 84.2

Q.

From a school 90 boys and 30 girls appeared for a public examination. The mean mark of boys is found to be $45\%$ whereas the mean mark of girls is $70\%$. What is the average marks $\%$ of the school?

1. $51.25\%$

2. $40.50\%$

3. $61.50\%$

4. $51.52\%$

Q. A vendor supplies 32 litres of milk to a hotel in a morning and 68 litres of milk in the evening. If the milk costs ₹15 per litre, how much money is due to the vendor per day?

1. ₹1500
2. ₹150
3. ₹1600
4. ₹1400

Q.

40 students in a class donated ₹ 40 each to a relief fund. 50 students from another class donated ₹ 60 each.

Considering the contribution of both classes together, what was the average amount that each child donated?

1. ₹ 49.66

2. ₹ 50

3. ₹ 51.11

4. ₹ 53.33

Q.

Michael appeared in an examination and obtained the following marks out of 100 in respective subjects. Find his average mark.

$$\begin{array}{cc}\text{Name}& \text{Michael}\\ \text{Physics}& 87\\ \text{Chemistry}& 82\\ \text{Biology}& 82\\ \text{Mathematics}& 98\end{array}$$

1. 86.5
2. 87.25
3. 89
4. 88

Q.

The average number of students in a government school in bangalore are 4600 and the average number in private schools are 5400.

If there are 6 private schools and 4 government schools in an area, what is the average number of students per school in that area?

1. 5800

2. 5080

3. 4800

4. 5250

Q.

The Scores of Rahane in 8 innings are as follows :

84 , 23 , 42 , 46 , 58 , 114 , 8 and 33

What is his average score ?

1. 54

2. 55.2

3. 48.4

4. 51

Q. In a Math test, 30% of 500 students got average scores. How many students got average scores?

1. 150
2. 250
3. 200
4. 300

Q.

What is the average amount of money spent by Satish if he has spent ₹ 250, ₹ 350, ₹ 300 , ₹ 450 and ₹ 400 in 5 days?

1. ₹ 375

2. ₹ 300

3. 333.33

4. ₹ 350

Q.

Candidates of four schools appear in a mathematics test.The data is as follows:

$\begin{array}{ccc}\text{Schools}& \text{No. of Candidates}& \text{Average Score}\\ I& 60& 75\\ II& 48& 80\\ III& \text{Not Available}& 55\\ IV& 40& 50\end{array}$

If the average score of the candidates of all the four schools is 66, find the number of candidates who appeared from school III.

1. 50

2. 52

3. 49

4. 51

Q.

The monthly earnings of a tailor are :

₹ 20100 , ₹ 26500 , ₹ 28000 , ₹ 22500 and ₹ 25400 for first 5 months of the year.

What is his average earning ?

1. ₹ 24500

2. ₹ 25500

3. ₹ 24750

4. ₹ 25400

Q.

Class 8 students did a survey on birthdays. This chart shows the number of people whose birthdays fall on different months of the year.

A) How many people have their birthdays before July?

B) How many people have their birthdays in December if nobody has their birthdays in October and six people have their birthdays in November.

1. A) 19; B) 8

2. A) 12; B) 8

3. A) 19; B) 14

4. A) 12; B) 14

Q.

What is the average head count in 3 sections having 20 , 30 and 40 students respectively?

1. 35

2. 25

3. 30

4. 37.5

Q.

If you score 50 in maths and 76 in science, what is your average score in the 2 subjects?

1. 63

2. 60

3. 65

4. 68

Q.

The marks scored by Shalini in$5$ Subjects is$83,84,100,92and90.$ Find her average marks

Q.

Candidates of four schools appear in a mathematics test.The data is as follows:

$\begin{array}{ccc}Schools& No.ofCandidates& AverageScore\\ I& 60& 75\\ II& 48& 80\\ III& NotAvailable& 55\\ IV& 40& 50\end{array}$

If the average score of the candidates of all the four schools is 66, find the number of candidates who appeared from school III.

1. 50

2. 52

3. 49

4. 51

Q. The average number of students in a government school in Bangalore is 4800 and the average number in private schools is 6400. If there are 6 private schools and 4 government schools in an area, what is the average number of students per school in that area?