Question

A home theater system is marked down from $3999 to $3180. What is the discount, and what is the rate of discount? (Round to the nearest 0.1%)

Answer 1

Answer:  The required discount is $819  and  the rate of discount is 20.48%.

Step-by-step explanation:  Given that a home theater system is marked down from $3999 to $3180.

We are to find the discount and the rate of discount.

The discount will be given by actual price minus the marked price.

We have

Actual price = $ 3999  and  marked price = $3180.

So, the discount is given by

$\textup{Discount}=\ (3999-3180)=\ 819$

And the rate of discount is

$\textup{Rate of discount}=\dfrac{819}{3999}\times100\%=20.48\%$

Thus, the required discount is $819  and  the rate of discount is 20.48%.

Answer 2

Answer:819,20.48 %

Step-by-step explanation:

Initial price=3999

Final price=3180

Discount is given by

=initial price - Final price

=3999-3180=819

Rate of interest is given by $\frac{initial -final }{initial }$

=$\frac{3999-3180}{3999}=0.2048$

i.e. $20.48 \%$