Question

A man sells an article at a gain of 10% If he had bought it for 10% less and sold it for rupees 10 more he would have gained 25% find the cost price of the article​

Answer 1

answer is 400
easy way is to consider cost price as 100
then he get 10% profit so 110 is the selling price
now het bought that product at 10% less that is 90 ruppes
he sells that product at 25% profit
so his selling price will be 112.5 rs
now we compare the old selling price and new selling price
there is increase of 2.5 rupees
then we conclude
if cp is 100 increased sp is 2.5
so when cp is 400 increased sp will be 10 rupees
thank you