Question

if the selling price of an article is 4\5 th of it's cost price find the loss percent.​

Answer 1

Let the cost price be x.

Then, selling price:  

5

4

​

x

Loss =  C.P.-S.P.=x−  

5

4

​

x=  

5

1

​

x

Loss percent =  

Cost Price

Loss

​

×100%

=  

x

x/5

​

×100%

=  

5

1

​

×100%

=  

20%

Answer 2

Given:

The selling price of an article is 4/5th of the Cost price

To Find:

Find the loss percent

Solution:

Let the cost price be x,

so, the selling price will be 4x/5

now,

                                   Loss%={(CP-SP)/CP}*100

                                              ={(x-4x/5)/x}*100

                                              =[{x(1-4/5)}/x]*100

                                              =1/5*100

                                              =20%

Hence the loss% is 20%.