Directions for Question 61 – 65 : Study the table and answer the given
questions.
Data related to the number of employees in five different companies in
December 2012
|
Company
|
Total Number of Employees
|
Out of total number of employees
|
|
Percentage of Science Graduates
|
Percentage of Commerce Graduates
|
Percentage of Arts Graduates
|
|
M
|
1050
|
13%
|
--
|
--
|
|
N
|
700
|
--
|
31%
|
40%
|
|
O
|
--
|
30%
|
30%
|
--
|
|
P
|
--
|
-
|
40%
|
20%
|
|
Q
|
--
|
35%
|
50%
|
--
|
NOTE:
(I) Employees of the given companies can be categorised only in three
types: Science graduates. Commerce graduates and Arts graduates.
(II) A few values are missing in the table (indicated by --). A candidate
is expected to calculate the missing value, if it is required to answer the
given question, on the basis of the given data and information.
The total number of employees in Company P was 3 times the total number of employees in Company O. If the difference between the number of Arts graduate employees in Company P and that in Company O was 180, what was the total number of employees in Company O?
1200
1440
720
900
1080
Solution
The percentage of Arts employees in Company O $= (100 – 30 - 30) = 40\%$
The percentage difference between Arts graduate employees in Company O and P
$= (40 – 20) = 2\%$
Now, let the number of employees in Company O be x.
Then, $x \times 20\% = 180$
$\therefore~~x = \dfrac {108 \times 100}{20} = 900$
