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?

A) 384

B) 376

C) 398

D) 372

E) 386

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?

A) 100

B) 150

C) 200

D) 250

E) None of these

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?

A) 60%

B) 62%

C) 64%

D) 66%

E) 69%

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?

A) 11:16

B) 12:19

C) 17:23

D) 3:4

E) None of these

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?

A) 7:5

B) 11:9

C) 13:11

D) 16:13

E) None of these

Answers :

1) Answer: A

Number of employees in IT department from A in 2016=150 * 140/100=210

Number of employees in IT department from B in 2016=200 * 140/100=280

Number of employees in IT department from C in 2016=100 * 140/100=140

Number of employees in IT department from D in 2016=200 * 140/100=280

Number of employees in IT department from E in 2016=150 * 140/100=210

Total number of employees in IT department in 2016=210 + 280 + 140 + 280 + 210=1120

Male employees in IT department in 2016=3/5 * 1120=672

Female employees in IT department in 2016=2/5 * 1120=448

Number of employees in Sales department from A in 2016=100 * 80/100=80

Number of employees in Sales department from B in 2016=250 * 80/100=200

Number of employees in Sales department from C in 2016=150 * 80/100=120

Number of employees in Sales department from D in 2016=100 * 80/100=80

Number of employees in Sales department from E in 2016=200 * 80/100=160

Total number of employees in sales department in 2016=80 + 200 + 120 + 80 + 160=640

Male employees in sales department in 2016=5/8 * 640=400

Female employees in sales department in 2016=3/8 * 640=240

Male employees in sales and IT department=400 + 672=1072

Female employees in sales and IT department=240 + 448=688

Difference=1072 – 688=384

2) Answer: B

Total number of employees in HR department=200 + 100 + 250 + 150 + 250=950

Total number of employees in sales department=100 + 250 + 150 + 100 + 200=800

Difference=950 – 800=150

3) Answer: B

Number of employees in HR department from C in 2016=250 * 110/100=275

Number of male employee in HR department from C in 2016=2/5 * 275=110

Number of female employees in HR department from C in 2016=275 * 3/5=165

Number of employees in HR department from D in 2016=150 * 120/100=180

Number of male employee in HR department from D in 2016=1/3 * 180=60

Number of female employees in HR department from D in 2016=2/3 * 180=120

Number of employees in HR department from E in 2016=250 * 120/100=300

Number of male employee in HR department from E in 2016=2/5 * 300=120

Number of female employees in HR department from E in 2016=3/5 * 300=180

Required percentage=(110 + 60 + 120)/(165 + 120 + 180) * 100=62%

4) Answer: C

Number of male employee in IT department from A in 2015=150 * 7/15=70

Number of female employees in IT department from A in 2015=150 * 8/15=80

Number of male employee in IT department from C in 2015=3/5 * 100=60

Number of female employees in IT department from C in 2015=2/5 * 100=40

Number of male employee in IT department from E in 2015=2/3 * 150=100

Number of female employees in IT department from E in 2015=1/3 * 150=50

Required ratio=(80 + 40 + 50):(70 + 60 + 100)

=170:230

=17:23

5) Answer: B

Required ratio=(200 + 100 + 250):(200 + 150 + 100)

=550:450

=11:9