Answer:
Real GDP 2017 = $6.680
Explanation:
First of all you have to calculate the GDP in 2009
80 * $40= $3.200
90 * 11 = $990
15 *90 = $1.350
GDP 2009 = $5.540
Now you have to calculate the GDP with the quantities of 2017 and the prices of 2009:
100 * $40 = $4.000
80 * $11 = $880
20 * $90 = $1.800
Real GDP 2017 = $6.680
Now you know the real GDP in the year 2017, without the effect of the inflation that is the variation of the prices through the years, and as you can see the real GDP is greater than the GDP 2009 .