Question : The following table shows the income (in Rs.) of five different persons ( A, B, C, D, E ) over given 4 years.
Years | 2015 | 2016 | 2017 | 2018 |
A | 12000 | 12500 | 13000 | 13500 |
B | 10000 | 11000 | 12000 | 13000 |
C | 5000 | 6000 | 7000 | 8000 |
D | 20000 | 25000 | 30000 | 35000 |
E | 15000 | 16000 | 17000 | 18000 |
Find the average income of the five persons in the year 2015.
Option 1: Rs. 12,600
Option 2: Rs. 12,400
Option 3: Rs. 12,700
Option 4: Rs. 12,500
Correct Answer: Rs. 12,400
Solution :
Average = $\frac{\text{Sum of all the observations}}{{\text{Total number of observations}}}$
So, the average income in 2015 is:
$ = \frac{12000 + 10000 + 5000 + 20000 + 15000}{5} = \frac{62000}{5} = 12,400$
Hence, the correct answer is Rs. 12,400.
Related Questions
Question : The table given below shows the income and expenditure of five companies.
Companies | Income | Expenditure |
A | 55 | 50 |
B | 50 | 40 |
C | 35 | 32 |
D | 40 | 35 |
E | 60 | 50 |
What is the difference between average income and average expenditure of all the companies?
Option 1: 4.2
Option 2: 6.6
Option 3: 2.6
Option 4: 8.4
Question : The table given below shows the marks obtained by five students in an examination.
Students | Marks |
A | 400 |
B | 300 |
C | 150 |
D | 350 |
E | 200 |
What is the ratio of marks obtained by D to the marks obtained by E?
Option 1: 5 : 3
Option 2: 7 : 4
Option 3: 5 : 4
Option 4: 7 : 3
Question : The table given below shows the number of students in 6 different schools.
Schools | Students |
A | 120 |
B | 60 |
C | 70 |
D | 80 |
E | 30 |
F | 50 |
The number of students in school A is what percentage of the number of students in school F?
Option 1: 41.66%
Option 2: 200%
Option 3: 240%
Option 4: 120%
Question : The table given below shows the marked price and the value of the discount of five different articles.
Article | Marked price | Discount |
A | Rs. 350 | Rs. 70 |
B | Rs. 650 | Rs. 75 |
C | Rs. 450 | Rs. 66 |
D | Rs. 750 | Rs. 72 |
E | Rs. 850 | Rs. 80 |
Selling price = Marked price – Discount
L1 = The value of the average discount of articles C and D.
L2 = Sum of the selling price of all articles.
What is the value of L1 + L2?
Option 1: 2756
Option 2: 2687
Option 3: 2816
Option 4: 2618
Question : The following table shows the sales of comic and fiction books in different shops. Find the ratio of total books sold from shop C to that of shop A.
Shops | Comic Books | Fiction Books |
A | 200 | 150 |
B | 250 | 200 |
C | 350 | 300 |
D | 400 | 200 |
E | 450 | 500 |
Option 1: 13 : 5
Option 2: 13 : 7
Option 3: 11 : 7
Option 4: 11 : 13
Know More about
Staff Selection Commission Multi Tasking ...
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Get Updates BrochureYour Staff Selection Commission Multi Tasking Staff Exam brochure has been successfully mailed to your registered email id “”.