The price of a commodity has increased by 15% so that one can buy 3 more commodities for Rs 1700. What was the original price of the commodity?

1 Answer
Oct 9, 2017

The original price of the commodity is: C_o=Rs492.75

Explanation:

Three commodities now cost Rs1700

One commodity now cost (Rs1700)/3=Rs566.6bar6

The cost now is: C_n=C_o +15%C_o

Rs566.6bar6=C_0+15/100 C_o

Rs5666bar6=100C_0+15C_o

(Rs5666bar6)/115=C_o

(Rs5666bar6)/115=C_o

Rs492.75=C_o