A reduction of 20% in the price of salt enabled a purchaser to obtain 4 kg more of Rs. 100. The reduced price of salt per kg is ?
Explanation:
In these kind of Questions,
The Price ratio and Quantity ratio will be in reverse proportion.
Price Ratio = 100:80 = 5:4
So Quantity Ratio = 4:5
Now we can buy 4 kg more.
So Difference between the quantities bought in both cases is 4 kg.
=> 5x - 4x = 4 kg
x = 4 kg.
Now we can buy 5x = 5*4 = 20 kg.
Reduced Price = 100 Rs./20 kg = 5 Rs./kg
By: Deepak Dawra ProfileResourcesReport error