Population of a town increases by 12% every year. If the population of town will be 188160 after 2 years, then what is its present population?

When a number is increased by 24, it becomes 115% of itself. What is the number?

If the radius of a right circular cylinder is decreased by 50% and its height is increased by 60%, its volume will be decreased by

78 is divided into two parts in such a way that the ratio of quadruple of the first part and five times the second part is 14: 15. The first part is

In a factory 60 % of the workers are above 30 years and of these 75 % are males and the rest are females. If there are 1350 male workers above 30 years, the total number of workers in the factory is: 

The MRP of a article is 60% above its manufacturing cost. The article is sold through a retailer, who earns 19% profit on his purchase price. What is the approx. profit percentage for the manufacturer who sells his article to the retailer? The retailer gives 15% discount on MRP.