Suppose there are three factories in Macroland and the following occurred in 2019: Metal, plastic and a car factory. Metal factory produces $200, plastic factory produces $500, and car factory produces $700, of its respective products. The metal factory sells all of its output to the car factory. The plastic factory sells $80 worth of plastic to the car factory, $20 to the government, and the rest to consumers. The Car factory exports $50 of its cars and sells the rest to consumers. Required:
What is the GDP of Macroland in 2019?

$1120

Explanation:

The computation of the GDP is shown below:

Y = C + I + G + X

Here Y denotes the GDP

C denotes the consumption = $500 - $80 - $20 = $400 and  700 - 50 = $650

I denotes the investment  = $

G denotes the government purchase = $20

X denotes the net exports = $50

So,  

Y = $400 + $650 + 0 + $20 + $50

= $1120

Explanation:

The answer is "According to the law of demand, price and quantity move along a track in opposite directions." The law of demand expresses that, if every other factor stay equal, the higher the cost of a good, the less individuals will request that good. Thus, the higher the price, the lower the amount requested.