​Amal and Bimal start a business with Rs. 500 for 9 months and an amount of money for 6 months respectively. If the total profit is of Rs. 69 and that of Bimal is of Rs. 46. Then what was the investment of Bimal at the starting of the business?

By selling an article for ₹21, a dealer makes a profit of 20%. By how much should he increase his selling price (in ₹) so as to make a profit of 50%?

A person bought a plot for ₹1,20,000. He sold $$\frac{1}{5}$$​ part of this plot at a loss of 10%. At what profit percent should he sell the remaining plot to earn a profit of 27% on the whole transaction?

Atul bought a bicycle at three-fourth price of its marked price and sold it at 20% more than its marked price. What will be the profit percentage?

The cost price of article A is ₹ 500 more than the cost price of article B. Article A is sold at a loss of 10% and B is sold at a profit of 20%. If there is a profit of ₹200 in the entire transaction, then the cost price of article A is :

A ration shop dealer sells his sugar using weights has 10% less than the true weight and makes a profit of 15%. Find his total gain percentage.

Vinay bought 100 pens (all at same cost price). He sold 40 pens at a profit of 20 percent, 20 pens at a profit of 40 percent and the remaining at the cost price. If he had sold all at a profit of 20 percent, then he would have got Rs. 160 more. What is the cost price of each pen?

An article was sold at ₹600, making a profit of 20%. The cost price of the article was