BANK & INSURANCE (DATA INTERPRETATION) PART 2

Total employees in company B = 300
Male employees in B = 300 × (1/3) = 100
Difference between male and female employees in B = 300 × (1/3) = 100

Difference between male and female employees in A = 100 × (75/150) = 50
Male employees in A = 50 × [14/(14 - 9)] = 140
Required difference = 140 - 100 = 40

Let male and female employees in company B is ‘x’ and ‘2x’ respectively and male and female employees in company C is ‘3y’ and ‘2y’ respectively.

According to the question:
(2x - x) : (3y - 2y) = 150/30
x : y = 5 : 1
x = 5y ........ (1)

2x - 2y = 80
(x - y) = 40 ........ (2)

From (1) and (2):
4y = 40
y = 10 and x = 50

Total number of male employees in B and C together = x + 3y = 50 + 30 = 80

Let male and female employees in company A is ‘14x’ and ‘9x’ respectively and male and female employees in company D is ‘5y’ and ‘7y’ respectively.

According to the question:
5y + 7y = 360
12y = 360
y = 30

(14x - 9x) : (7y - 5y) = 75 : 60 = 5 : 4
20x = 10y
x = 15

Required difference = 14x - 9x = 5x = 75

Let male and female employees in company B is ‘x’ and ‘2x’ respectively and male and female employees in company D is ‘5y’ and ‘7y’ respectively.

According to the question:
(x + 2x) + (5y + 7y) = 675
(3x + 12y) = 675
(x + 4y) = 225 ........ (1)

(2x - x) : (7y - 5y) = 150/60 = 5/2
2x = 10y
x = 5y ........ (2)

From (1) and (2):
9y = 225
y = 25 and x = 125

Total number of female employees in companies B and D together = 2x + 7y = 425
Total number of male employees in companies B and D together = x + 5y = 250
Required difference = 425 - 250 = 175

Difference between male and female employees in company A = 60
Difference between male and female employees in company E = 60 × (45/75) = 36
Ratio of male to female employees in company E is 3 : 2

Total employees in company E = 36 × [(3 + 2)/(3 - 2)] = 36 × (5/1) = 180

Total students in school A = 10% of 12000 = 1200
Total students in school B = 22% of 12000 = 2640
Total students in school C = 20% of 12000 = 2400
Total students in school D = 14% of 12000 = 1680
Total students in school E = 18% of 12000 = 2160
Total students in school F = 16% of 12000 = 1920

Total number of boys = 700 + 960 + 2000 + 420 + 960 + 1200 = 6240
Average = 6240/6 = 1040

Boys in school D, E and F together = 420 + 960 + 1200 = 2580
Girls in school A, B and C together = 500 + 1680 + 400 = 2580
Percentage = (2580/2580) × 100 = 100%

Total number of girls of school E and F together = 1200 + 720 = 1920
Total number of boys of school B and C together = 960 + 2000 = 2960
Ratio = 1920 : 2960 = 24 : 37