On selling a racket for ₹198, a shopkeeper gains 10%. The cost price of the racket is

By selling a table for Rs. 330, a trader gains 10%. Find the cost price of the table.

By selling a book for Rs. 50, a shopkeeper suffers a loss of 10%. The cost price of the book is Rs. 60.

By selling two articles. Each for Rs 270 , a shopkeeper gains the cost prices of one article. The cost price of one article and the profit percentage, respectively. Are :

By selling a chair for ₹1375 a man gains 10%. Find its cost price.

By selling a television for Rs. 6600, a trader gains 10%. Find the cost price of the television for the trader.