During the stocktake sales an LCD television is discounted by 15%. a Explain what percentage mark-up is required for it to return to its original price.
b Repeat part a with a discount of 20% applied.
c What do you notice about the relationship between the percentage discount and the percentage mark-up?

a)18%

b) try what I did for a (replace .85 with .8)

c) the percent discount is less than the percent increase

Step-by-step explanation:

Lets say its starting price is x and its new price is y, then

y = .85x

Then to convert y to x we must do

x = y/.85 or x = 1.18y

Try applying the same idea to b, I think you can do it

For c, the relationship is that the percent discount is always smaller than the percent increase.

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d

step-by-step explanation: