Directions: There are five companies and we have been given the number of employees working in different companies. In the table we have also been given the percentage of male and female employees in HR and Marketing department.
 
Company Employees HR Marketing
Male Female Male Female
P 400 12 14 9 7
Q 650 19 10 11 13
R 500 28 14 4 7
S 550 31 9 6 4
T 300 12 18 3 7
Important for :
1
If 60% of the employees of company T in HR department have MBA degree and 40% of the employees of the same company in the Marketing department hvae MBA degree, then how many employees have MBA degree in company T in both departments together?
» Explain it
E

Total number of employees in Company T having MBA degree
 
= 60% of (12 + 18)% of 300 + 40% of (7 + 3)% of 300
 
= 60% of 30% of 300 + 40% of 10% of 300
 
= 60% of 90 + 40% 30
 
= 54 + 12 = 66.


Hence, option E is correct.
 
2
What is the ratio of the number of female employees of Company Q in HR department to the number of male employees of Company R in Marketing department?
» Explain it
D

Reqd ratio

=    Female QHR
Male RMarketing

=     650 × 10  
500 × 4

=   13 : 4


Hence, option D is correct.

3
The total number of HR employees of Company P is what per cent more than the total number of Marketing employees of Company T?
» Explain it
D

Total no. of employees of Company P in HR department

=   400 × (12 + 14)  = 104
100


Total no. of employees of Company T in Marketing department

=   300 × (3 + 7)  = 30
100


∴     Difference = 104 – 30 = 74
∴   Reqd% more =  74  × 100  ≈  246.67%
30


Hence, option D is correct.

4
What is the ratio of the male employees in HR department of Company P and R together to the female employees of Marketing department in Company S and T together?
» Explain it
C

Male employees in HR department of Company P and R together
 
= 12% of 400 + 28% of 500
 
= 48 + 140 = 188
 
 
Female employees in Marketing department of Comapny S and T together
 
=  4% of 550 + 7% of 300
 
=  22 + 21 = 43
 

∴   Reqd ratio = 188 : 43.

Hence, option C is correct.
 
5
What is the difference between the number of female employees of HR department in all companies together (excluding company S) and the female employees of Marketing department in all companies together (excluding company Q)?
» Explain it
A

Female employees in HR department of Company P, Q, R and T together
 
= 14% of 400 + 10% of 650 + 14% of 500 + 18% 300
 
= 56 + 65 + 70 + 54
 
= 245 
 

Female employees in Marketing department of Company P, R, S and T together
 
= 7% of 400 + 7% of 500 + 4% of 550 + 7% of 300
 
= 28 + 35 + 22 + 21
 
= 106
 

∴ Difference = 245 – 106 = 139.

Hence, option A is correct,


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