00:01
The problem involves using supply and demand equations.
00:05
Suppose the market is defined by demand q is equal to 153 minus 3p and supply you can say it is q is equal to 3 plus 2p.
00:26
So at price p is equal to 17 what is the shortage? so that will exist in the market.
00:45
So this is basically asked.
00:49
So what we will do is we know that at equilibrium demand is equal to supply.
01:05
So we are assuming.
01:07
So therefore q should be 153 minus 3p is equal to 3 plus 2p.
01:21
From here we will find out the value of p.
01:30
So p will be what? it will be minus 3 taken this side.
01:40
So we will segregate this value.
01:42
This will be 150 and it will be 5p.
01:47
Right.
01:49
It will be 5p.
01:50
Right.
01:54
So now it will be 150 and price p becomes equal to 30.
02:00
Right.
02:01
So this we have got 30.
02:03
Right.
02:04
So what we'll do is we will find out because both equations satisfies each other.
02:12
Right.
02:13
So that means what we'll do is we are talking about the shortage.
02:18
Right.
02:18
Shortage will be like supply.
02:21
So this is equation number one in equation number two.
02:25
To find the shortage we need to find out the q at p is equal to 30.
02:32
Right.
02:32
Because we are shortage will be on supply itself.
02:36
Right.
02:36
So therefore supply should be how much? q is equal to 3 plus 2 into 30.
02:54
Right.
02:54
So now supply should be 30 into 2 means 60 that means 63...