The following pie-charts give the percentage distribution of employees in different Departments in XYZ Company Ltd. during the years 2005 and 2006. Answer the questions using this data.
If 300 employees left Operations at the end of 2005, how many joined in 2006?
From the above charts, the following table can be made.
Let $$N$$ be the number of people who joined in 2006 in Operations department, then
$$\ 4140-300+N\ =5200$$
$$N\ =1360$$
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