By selling a motor cycle for Rs. 23,000 a dealer gains 15%. Find its cost price (in Rs.)
Gain%=15%
∴C.P=S.P100+Gain%×100
=23,000100+15×100
=23,000115×100
=200×100=20000
∴C.P=Rs. 20,000
By selling an article for Rs 920, a shop keeper gains 15%. Find the cost price of the article.