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.

• A.
• B. pq
• C.
• D.

Answer 1

The correct option is A

$n(1+\frac{p}{100})(1-\frac{q}{100})=n\text{/}n(1+\frac{p}{100}-\frac{q}{100}-\frac{pq}{{100}^2})\text{/}n1+\frac{p}{100}-\frac{q}{100}-\frac{pq}{{100}^2}=1\frac{p}{100}-\frac{q}{100}=\frac{pq}{{100}^2}\Rightarrow p-q=\frac{pq}{100}$