# 65th BPSC Mains Answer Writing Day 15

## Day 15

### Statistics

Direction (1-5): Study the following information carefully and answer the given questions:The given line graph shows the number of employees in three different department from five different companies-A, B, C, D and E in 2015.

1)If the number of employees in IT department in each company increased by 40% and the number of employees in Sales department in each company decreased by 20% from 2015 to 2016. Ratio of the number of male to female employees in IT department and sales department in 2016is 3:2 and 5:3 respectively. What is the difference between the number of female employees in IT and sales department together and the number of male employees in IT and sales department together?

2)What is the difference between the total number of employees in HR department from all the companies together and the total number of employees in sales department from all the companies together?

3)  If the number of employees from C, D and E in HR department increased by 10%, 20% and 20% respectively from 2015 to 2016. If the ratio of the male to female employees in HR department from C, D and E in 2016 is 2:3, 1:2 and 2:3 respectively, then what is the number of male employees in HR department from C, D and E in 2016 together is approximately what percent of the number of female employees in HR department from C, D and E in 2016 together?

4)  In A, C and E ratio of the male to female employees in IT department is 7:8, 3:2 and 2:1 respectively. What is the ratio of the total number of female employees in IT department from A, C and E together to the total number of male employees in IT department from A, C and E together?

5)What is the ratio of the total number of employees from B in all the departments together to the total number of employees from D in all the departments together?

### General Science

1. Briefly describe the upcoming projects of ISRO. Also describe their utilities.
2. What do you understand by Blockchain technology. What are its advantages and future prospects of uses .