If the male employees in the Finance department increase by 10%, the male employees in the Administration department increase by 20%. If 23 male employees join the Manufacturing department and the number of male employees in HR and the Marketing department remains the same, what is the percentage increase in the number of male employees in the organisation?

7 \frac{4}{9} %

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7 \frac{1}{9} %

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7 \frac{5}{9} %

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7 \frac{2}{9} %

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None of these

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Solution

The correct option is C $7 \frac{5}{9} %$
By using the given information we can get the following table.
$\begin{matrix} O r g a n i s a t i o n & M a l e & F e m a l e H R & 108 & 272 M a r k e t i n g & 315 & 160 F i n a n c e & 270 & 144 A d m i n i s t r a t i o n & 90 & 224 M a n u f a c t u r i n g & 117 & 0 T o t a l & 900 & 800 \end{matrix}$
Finance $= 270 + 27 = 297$
HR $= 108$
Administration $= 90 + 18 = 108$
Marketing $= 315$
Manufacturing $= 117 + 23 = 140$
The total number of male employees $= 968$
Increase in the number of males in the organisation $= 968 - 900 = 68$
$∴$ required percentage $= \frac{68}{900} \times 100 = 7 \frac{5}{9} %$

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