Question

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?

• A. 7
• B. 15
• C. 10
• D. 20

Answer 1

The correct option is C

10

Given: Germany won 7 bronze medals and angle of the sector = ${84}^{\circ }$

It implies that $\frac{{84}^{\circ }}{{360}^{\circ }}\times \text{total medals}=7$

Therefore, total number of medals = $\frac{7\times {360}^{\circ }}{{84}^{\circ }}=30$ space medals

On observing the graph, we see that the angle of sector for gold medals = ${120}^{\circ }$

So, the number of gold medals won by Germany is $\frac{{120}^{\circ }}{{360}^{\circ }}\times 30=10$ space medals