A wholesaler purchased 7 hair clips for a rupee. How many for a rupee must he sell to get profit of 40%?

By selling 100 pencils, a shopkeeper gains the selling price of 20 pencils, His gain percent is:

The cost price of 20 articles is the same as the selling price of x articles. If there is 25% gain, then the value of x

When an article is sold for Rs 366, there is a loss of 39%. To gain 41% it should be sold for Rs? 

A buys a water cooler at some price and sells it to B at 20% profit. B sells it to C at 10% profit. If C bought it for Rs 6666, then B's cost price is

A fruit merchant makes a profit of 25% by selling mangoes at a certain price. If he charges Re. 1 more on each mango, he would gain 50%. At first the price of one mango was

A shopkeeper by selling  13 Titan watches, earns a profit equal to the selling  price  of 3 Titan watches. His profit percentage is

A discount of 20% in the price of rice enables X to buy 5 kg more rice for ₹100. What is the reduced price of rice per kg?