In a company, there are initially ‘n’ employees. First p% &#

Question

In a company, there are initially ‘n’ employees. First

p %

employees were hired and after a month

q %

of the employees were fired. This again made the number of employees in the company as ‘n’. Find the value of p – q.

Options:

A . pq100

B . pq

C . p+q100

D . 2np

Answer: Option A
:
A

n (1 + \frac{p}{100}) (1 - \frac{q}{100}) = n / n (1 + \frac{p}{100} - \frac{q}{100} - \frac{p q}{100^{2}}) / n 1 + \frac{p}{100} - \frac{q}{100} - \frac{p q}{100^{2}} = 1 \frac{p}{100} - \frac{q}{100} = \frac{p q}{100^{2}} \Rightarrow p - q = \frac{p q}{100}

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