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Data Interpretation Questions with Solutions PDF for IBPS PO Pre, SBI PO Pre, SBI Clerk and NRA CET 2021 at Smartkeeda

Directions : Study the following line chart carefully and answer the questions given beside.
 
The line chart below shows the number of employees and the number of male employees in four different companies. 
 
Note 1: Total number of employees = Number of (male + female) employees
Note 2: Total number of male employees = number of male employees in senior post + number of male employees in non-senior post
Note 3: Total number of female employees = number of female employees in senior post + number of female employees in non-senior post
 
 
1
The total numbers of male employees in all the companies together is what percentage of the total number of employees in all the given companies together?
» Explain it
B
Total number of male employees in senior post = (244 + 210 + 178 + 184) = 816

Total number of male employees in non senior post = (728 + 1025 + 692 + 900) = 3345

Total number of employees = (1743 + 2126 + 1584 + 1872) = 7325

Reqd.% =  3345 + 816  × 100 = 56.8%
7325

Hence, option B is correct.
2
Find the difference between the total number of males in non-senior post in all the companies together and the total number of females in non-senior post in all the companies together. 
» Explain it
D
Total number of male employees in non senior post = (728 + 1025 + 692 + 900) = 3345
 
Total number of female employees in non senior post = (617 + 644 + 516 + 625) = 2402
 
Required difference = (3345 – 2402) = 943
 
Hence, option D is correct.
3
Find the ratio of the total number of male employees in senior post in all the companies together to the total number of female employees in senior post in all the companies together.
» Explain it
C
Total number of employees = (1743 + 2126 + 1584 + 1872) = 7325
 
Total number of male employees in senior post = (244 + 210 + 178 + 184) = 816
 
Total number of male employees in non senior post = (728 + 1025 + 692 + 900) = 3345
 
Total number of female employees in non senior post = (617 + 644 + 516 + 625) = 2402
 
Total number of female employees in senior post = (7325 – 816 – 3345 – 2402) = 762
 
Required ratio = 816 : 762 = 136 : 127
 
Hence, option C is correct.
4
Find the average number of female employees in each company.
» Explain it
C
Total number of employees = (1743 + 2126 + 1584 + 1872) = 7325
 
Total number of male employees in senior post = (244 + 210 + 178 + 184) = 816
 
Total number of male employees in non senior post = (728 + 1025 + 692 + 900) = 3345
 
Total number of female employees in non senior post = (617 + 644 + 516 + 625) = 2402
 
Total number of female employees in senior post = (7325 – 816 – 3345 – 2402) = 762

Reqd. average =  2402 + 762  = 791
4

Hence, option C is correct.
5
Find the difference between the number of male employees in senior post in TCS and HCL together and the number of female employees in senior post in Wipro and Infosys together.
» Explain it
B
Male employees in senior post in TCS and HCL together = (244 + 210) = 454
 
Female employees in senior post in Wipro = (1584 – 178 – 692 – 516) = 198
 
Female employees in senior post in Infosys = (1872 – 184 – 900 – 625) = 163
 
Required difference = 454 – (198 + 163) = 93
 
Hence, option B is correct.