Question

a dress was sold for 90 with a loss of 25%. find its cost price

Answer 1

Here is your answer.....

Let the cost price be x.
Loss = 25% of x 
        = x/4

A/q,

Selling price = x - x/4
⇒ 90  = 3x/4
⇒ x = (90×4)/3
⇒ x = 120

∴ The cost price is Rs. 120

I hope it helps you ^_^

Answer 2

Given : A dress was sold for Rs. 90 with a loss of 25%.

To find : The cost price.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the cost price)

Let, the cost price of the dress = Rs. x

Loss amount :

= Cost price × 25%

= x × (25/100)

= Rs. x/4

Selling price will be :

= Cost price - Loss amount

= x - (x/4)

= (4x-x)/4

= Rs. 3x/4

According to the data mentioned in the question,

3x/4 = 90

x = 90 × 4/3

x = 120

So, the cost price of the dress = Rs. x = Rs. 120

(This will be considered as the final result.)

Hence, the cost price of the dress is Rs. 120