Question

By selling a shirt for rs135 a shopkeeper loss 10percent what is the cost price of the shirt

Answer 1

Answer:

The cost price of the shirt is Rs.150

Step-by-step explanation:

SP = Selling Price = Rs.135

Loss% = 10

CP = Cost Price = ?

Now:

Loss% = (Loss/CP) * 100

           = [(CP - SP)/CP] * 100

            = [1 - (SP/CP)]*100

Substituting for Loss% and SP, we get:

10 = (1 - (135/CP))*100

(10/100)-1 = -135/CP

-0.9 = -135/CP

CP = 135/0.9 = 150

Verify:

CP = 150

SP = 135

Loss = 15

Loss% = (Loss/CP)*100

           = (15/150)*100

           = 10%