An instrument store gives a 10% discount to all educational institute students off the original cost of an instrument. During a back to educational institute sale an additional 15% is taken off the discounted price. Julie, a educational institute student at the local high educational institute, purchases a flute for 6. How much did it originally cost?
Posts Tagged original cost
Lets say that we see a product in a shop. It says that it now costs £70 after a 30% discount.
How would you work out the original cost?
With the above example it is easy, through a method of trial and error we can quickly come up with the original cost.
Does anyone know the proper method or equasion to use to work it out?