In the given question the information is already provided that Tim was given 60% of $500 by me. based on this information the answer needs to be found. The amount of money that i gave Tim is the answer that needs to be deduced from all the information's given in the question.
60% of $ 500 = [(60/100) * 500] dollars
= (60 * 5) dollars
= 300 dollars
So the amount of money that was given to Tim by me is $300.