The pie charts show some information about the numbers of medals won by Germany and by the Russian Federation in the 2010 Winter Olympics.
While Germany won 7 bronze medals, how many gold medals did they win?
10
Given: Germany won 7 bronze medals and angle of the sector = 84∘
It implies that 84∘360∘×total medals=7
Therefore, total number of medals = 7×360∘84∘=30 space medals
On observing the graph, we see that the angle of sector for gold medals = 120∘
So, the number of gold medals won by Germany is 120∘360∘×30=10 space medals