By selling an article for ₹ 1,200, Rohit loses one-fifth of its cost price. For how much should he sell it in order to gain 30% ?

By selling an article for ₹ 1,200; Rohit gains one-fifth of its cost price. What should be the selling price of the article when he sells it at 30% gain?

A man sold a bicycle at 5% profit. If the cost had been 30% less and the selling price ₹ 63 less, he would have made a profit of 30%. What was the cost price of the bicycle?

Renu sold an article at a loss of 8 percent. Had she bought it at 10% less and sold for ₹ 36 more, she would have gained 20%. Find the cost price of the article.