Question

a redution of 20% in the price of salt enables a purchaser to buy 2.5 kg more for Rs. 160. find the original price per kg of salt

Answer 1

Let the original price of the salt per kg be x.

Given, x - 0.2x = 160/2.5

            0.8x = 64

                x = 80.

The original price = 80 per kg.

Answer 2

Hi !

Reduction in the price = 20 % = 20/100 = 0.2

Original price = a  = ?

A.T.Q.,

a - 0.2a = 160/2.5

0.8 a = 64 

a = 64/0.8

a = 80

Original  price = Rs 80

Hope this helps you !