Answer:
$140
Explanation:
The computation of the real GDP is shown below:
For computing the real GDP first we have to determine the inflation rate
Inflation rate formula is
= (Current year price - base year price) รท (Base year price)
For Product X
= ($2 - $1) รท (1) = 1
For Product Y
= ($3 - $2) รท (2) = 0.5
For Product Z
= ($4 - $3) รท (3) = 0.33
Now the real GDP is
= (Base year price of X)รท (Inflation rate) + (Base year price of Y)รท (Inflation rate) + (Base year price of Z)รท (Inflation rate)
= (10) รท (1) + (20) รท (0.5) + (30) รท (0.3333)
= 10 + 40 + 90
= $140