Hi could anyone please guide me on how I would go about calculating the percentage of a specific sector from this Pi-chart. I think I am suppose to use data from the bar chart and apply it to the pie-chart but I don't really know how.
The question is
According to the data provided, in 2005 the total expenditure (outgoings) on Advertising and Sales and Distribution was closest to which of the following amounts a)50,000,000 b)35,000,000 c)30,000,000 d)$5,000,000 e)3,000,000 Ans is a
On
If you look at the pie chart, you can see that red, green and purple take away roughly 50% total. From that 50% every part takes away around 33%. You are looking for the value of green+purple.
With our thoughts above, we can estimate that green and purple take around 33% of the pie. So with 100% = 165 mil, 33% would be around 55 mil. Now take the answer closets to this, which is 50 mil.
Ignore the bar graph. Looking at the relevant sections of the pie chart, estimate their area as a fraction of the whole. I would estimate it at about $1/3$ of the total area, but in any case it is certainly more than $1/4$ and less than $1/2$. Now look at the possible answers as fractions of the total $165$ million. Only one falls within the required range.