Question

An item with an original price of p dollars is on sale at a 25% discount. Which expression is not equivalent to the price of the item with the discount? .

A. (1.0p-0.25p)
B. (1.0-0.25)p
C.0.75p
D.0.25p

Answer 1

D, because the answer would be 0.75p and all the rest make 0.75p and D does not 

Answer 2

Answer: D. 0.25p

Explanation:

The original price of an item = p dollars

After 25% discount the price of that item =
`p-25\%\ of\ p`

Let's solve the above expression

`p-25\%\ of\ p\\=p-(25)/(100)*p`

Taking p as common outside of the expression, we get

`p(1-(25)/(100))\\=p(1-0.25)\\=p(0.75)`

The only expression which is not equivalent to the price of the item with the discount = 0.25 p