Answer:
a. 40 per month
Explanation:
The computation of the fallen equilibrium quantity of widgets is
Since there is no tax so equilibrium quantity would be 200
And , the tax is imposed is $5
So, the tax revenue is
= 200 × $5
= $1,000
And, the government revenue is $800
So, the loss is
= $1,000 - $800
= $200
Now the fallen quantity is
= $200 ÷ $5
= $40