table charts



The following table shows the number of new employees added to different categories of employees in a company and also the number of employees from these categories who left the company every year since the foundation of the Company in 1995.
Year
Managers Technicians Operators Accountants Peons
New Left New Left New Left New Left New Left
1995 760 - 1200 - 880 - 1160 - 820 -
1996 280 120 272 120 256 104 200 100 184 96
1997 179 92 240 128 240 120 224 104 152 88
1998 148 88 236 96 208 100 248 96 196 80
1999 160 72 256 100 192 112 272 88 224 120
2000 193 96 288 112 248 144 260 92 200 104

1).
What is the difference between the total number of Technicians added to the Company and the total number of Accountants added to the Company during the years 1996 to 2000?
A   128   
B   112   
C   96   
D   88   
ANS: D - 88

Required difference
    = (272 + 240 + 236 + 256 + 288) - (200 + 224 + 248 + 272 + 260)
    = 88.

2).
What was the total number of Peons working in the Company in the year 1999?
A   1312   
B   1192   
C   1088   
D   968   
ANS: B - 1192

Total number of Peons working in the Company in 1999
    = (820 + 184 + 152 + 196 + 224) - (96 + 88 + 80 + 120)
    = 1192.

3).
For which of the following categories the percentage increase in the number of employees working in the Company from 1995 to 2000 was the maximum?
A   Managers   
B   Technicians   
C   Operators   
D   Accountants   
ANS: A - Managers

Number of Managers working in the Company:

In 1995 = 760.
In 2000 = (760 + 280 + 179 + 148 + 160 + 193) - (120 + 92 + 88 + 72 + 96)
  = 1252.

Therefore Percentage increase in the number of Managers
    = [ (1252 - 760)  x 100 ]  % = 64.74%.
760

Number of Technicians working in the Company:
In 1995 = 1200.
In 2000 = (1200 + 272 + 240 + 236 + 256 + 288) -

   (120 + 128 + 96 + 100 + 112)
  = 1936.

Therefore Percentage increase in the number of Technicians
    = [ (1936 - 1200)  x 100 ]  % = 61.33%.
1200

Number of Operators working in the Company:
In 1995 = 880.
In 2000 = (880 + 256 + 240 + 208 + 192 + 248) -

    (104 + 120 + 100 + 112 + 144)
  = 1444.

Therefore Percentage increase in the number of Operators
    = [ (1444 - 880)  x 100 ]  % = 64.09%.
880

Number of Accountants working in the Company:
In 1995 = 1160.
In 2000 = (1160 + 200 + 224 + 248 + 272 + 260) -

    (100 + 104 + 96 + 88 + 92)
  = 1884.

Therefore Percentage increase in the number of Accountants
    = [ (1884 - 1160)  x 100 ]  % = 62.41%.
1160

Number of Peons working in the Company:
In 1995 = 820.
In 2000 = (820 + 184 + 152 + 196 + 224 + 200) -

    (96 + 88 + 80 + 120 + 104)
  = 1288.

Therefore Percentage increase in the number of Peons
    = [ (1288 - 820)  x 100 ]  % = 57.07%.
820

Clearly, the percentage increase is maximum in case of Managers.

4).
What is the pooled average of the total number of employees of all categories in the year 1997?
A   1325   
B   1195   
C   1265   
D   1235   
ANS: B - 1195

otal number of employees of various categories working in the Company in 1997 are:

Managers = (760 + 280 + 179) - (120 + 92) = 1007.
Technicians = (1200 + 272 + 240) - (120 + 128) = 1464.
Operators = (880 + 256 + 240) - (104 + 120) = 1152.
Accountants = (1160 + 200 + 224) - (100 + 104) = 1380.
Peons = (820 + 184 + 152) - (96 + 88) = 972.

Therefore Pooled average of all the five categories of employees working in the Company in 1997
    = 1  x (1007 + 1464 + 1152 + 1380 + 972)
5
 
    = 1  x (5975)
5

    = 1195.

5).
During the period between 1995 and 2000, the total number of Operators who left the Company is what percent of total number of Operators who joined the Company?
A   19%   
B   21%   
C   27%   
D   29%   
ANS: D - 29%

Total number of Operators who left the Company during 1995 - 2000
    = (104 + 120 + 100 + 112 + 144)
    = 580.
Total number of Operators who joined the Company during 1995 - 2000
    = (880 + 256 + 240 + 208 + 192 + 248)
    = 2024.

Therefore Required Percentage = ( 580  x 100 ) % = 28.66% ~= 29%.
2024