A shopkeeper buys three products a, b, c and sells them at 20%, 30%, 40% profit, respectively. What is ratio of the selling price of these products, if the ratio of their cost prices is 4:3 :2?

If Manoj buys 324 toffees for Rs 486, then how many toffees should he sell for Rs 90 to make 50% profit?

A dishonest dealer marks up his goods by 50% and then gives a discount of 20% on the marked price. Apart from this, he uses a faulty balance which reads 1kg for 900 gm. What is his net profit percentage (rounded off to the nearest integer)?

If Cost price of an article is Rs.220 and profit is 20 %, then what will be the selling price of the article?

By what fraction selling price ( S.P. ) must be multiplied to get the cost price ( C.P. ) if the loss is 20%? 

The cost price of 10 articles is equal to the selling price of 9 articles. Find the profit percent.

Chandu bought a watch at 20 percent discount on mark price but sold it at mark price. Find the percentage of profit.