 Hello and welcome to this session. In this session we will discuss a question which says that 8 pounds of butter cost 1.92 dollars. Peter got 9.60 dollars worth of butter. How many pounds did Peter buy? Now before starting the solution of this question, we should know our result. And that is, a unit rate compares a quantity to one unit of the other quantity for example times odd beat. Now we divide both numerator and denominator by 3 and we search this equal to 75 beats per minute. Now this result will work out as a key idea for solving out the given question. Now let us start with the solution of the given question. Now it is given in the question that 8 pounds of butter 1.92 dollars is the cost of butter per pound. Now as cost of 8 pounds of butter is 1.92 dollars upon 8 pounds. Now let us start into the key idea which we had discussed earlier which is equal to 2 can be written as 1.92 upon 100. This butter equal to 1.92 upon 8 into 100. Now we know that 8 into 24 is 1.92 so this is equal to 24 upon 100 which is equal to 0.24 butter to 4 dollars. Now suppose Peter purchased x pounds of butter now we know that cost of 1 pound of butter is 0.24 dollars so the cost of butter 0.24 dollars into also given that 9.60 dollars of butter which means the total cost of x pounds of butter is equal to 9.60 dollars therefore 0.23 dollars equal to 9.60 dollars. 9.60 upon 0.960 upon 100 now 0.24 upon now 100 is cancelled with 100 so this implies x is equal to 960 upon 24 is equal to hope you all have enjoyed the session.