Question

A violin was on sale of 50% off. the sale price is $50. what was the original price

Answer 1

If it is on sale for half off and the price comes down to $50 then the original price must have been $100. 50%=50/100. With $50 is 50% of 100

Answer 2

In the given question, there are several important information's that have been given. based on these information's the correct answer to the question can be determined. It is already given that the selling price is $50. 50% off has already been declared.
Then
The amount of sale given on the violin = (50/100) * 50 dollars
                                                             = 25 dollars.
So the sale that has been given on the violin is $25.
Then the original price of the violin = (50 + 25) dollars
                                                        = 75 dollars
So the original price of the violin was $75.