The following table gives the percentage of students belonging to low income group in each of the five colleges A, B, C, D and E, along with the proportion of males and females with and without low income.College Name Percentage of students
with low incomeProportion of males
and femalesWith low income Without low income M:F M:F A 35 5:6 6:7 B 25 3:5 4:5 C 24 1:2 2:3 D 19 3:2 4:3 E 15 5:3 3:2
College C Students Without Low Income Calculation
First, determine the percentage of students in College C who do not belong to the low-income group.
- Percentage of students with low income = 24%
- Percentage of students without low income = 100% - 24% = 76%
Calculate Total Students Without Low Income
Next, calculate the actual number of students without low income using the total student count for College C.
- Total students in College C = 5000
- Number of students without low income = $ \frac{76}{100} \times 5000 $
- Number of students without low income = $ 0.76 \times 5000 = 3800 $
Determine Number of Males Without Low Income
Finally, use the proportion of males and females without low income to find the number of males.
- Proportion of males to females without low income = 2:3
- The total parts in this proportion is $ 2 + 3 = 5 $.
- Males constitute $ \frac{2}{5} $ of the students without low income.
- Number of males without low income = $ \frac{2}{5} \times 3800 $
- Number of males without low income = $ 2 \times 760 = 1520 $
Therefore, there are 1520 males without low income in College C.
Important Questions from Tabulation
The table shows District-wise data of a number of primary school teachers posted in schools of a city.
Study the table and answer the question:
District
Male teachers
Female teachers
East
1650
2375
North
1075
2651
West
1280
1520
South
1170
1085
Central
690
859
What is the difference between the total number of male teachers in the districts East, North, West taken together and the total number of female teachers in the districts East and South?Table shows income (in Rs. ) received by 4 employees of a company during the month of December 2020 and all their income sources.
Source
Amit
Suresh
Nitin
Varun
Salary
35000
38500
29000
42000
Arrears
6000
6300
5000
7500
Bonus
1000
1100
1000
1240
Overtime
1800
1950
1400
1500
What is the ratio of salary of Varun to his income other than salary?Study the table and answer the question:
Income (Rs.)
No. of persons
Less than 200
12
Less than 250
26
Less than 300
34
Less than 350
40
Less than 400
50
What is the percentage of persons earning Rs. 250 or more?The following table shows the annual profit of a company (in Rs. lakh).
2014-2015
2015-2016
2016-0217
2017-2018
2018-2019
625
690
725
775
815
The period which has the maximum percentage increase in profit over the previous year is:
The table given below shows the number of persons participating in a survey from 6 different states.
States Persons S1 100 S2 200 S3 400 S4 500 S5 600 S6 800 What is the ratio of number of person participating in a survey from state S3 to the number of person participating in a survey from state S4?
