Question

Today price of tomatoes is increased by 25%. By what percent should be decreased tomorrow to bring the price back to its original price?
___

Answer 1

Let the original price of tomatoes is Rs. 100
The increased price of tomatoes = Rs.100 + Rs.100 $\times$ $\frac{25}{100}$
= Rs. 125
The difference between increased price and original price = Rs. 125 - Rs. 100 = Rs. 25
So, Rs. 25 need to be reduced to bring the price back to its original.
Percent decrease = $\frac{25}{125}$ $\times$ 100 $\%$
= 20$\%$