By selling an article for Rs 9900 ,Shashank gains 10%. Find his C. P

By selling an article for Rs 900, a man gains 20%. Find his cost price and the gain.

By selling an article for Rs. 100, a man gains Rs. 30. Then, his gain% is:

By selling a bicycle for Rs. 5670 a trader gains Rs. 270. Find his gain per cent. [Hint: C.P. = (S.P.) - (Gain)]

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

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

By selling an article for Rs 77 a person gained (1)/(10) of his outlay. What would he have gained orlost percent by selling it for Rs 63?

By selling an article for Rs 810, a man loses 10%. At what price should he sell it in order to gain 8% ?

A man sold an article for Rs 490 and gained 10% on it. Find the cost price of the article.