The price of raw materials has gone up by 15%, labor cost has also increased from 25% of the cost of raw material to 30%…

In a mixture there is 15% of salt. When 30 liter of water is evaporated, salt becomes 20% of mixture. Find the initial q…

Population of a town increase 2.5% annually but is decreased by 0.5% every year due to migration. What will be the perce…

In a factory 60% of the workers are above 30 years and of these 75% are male and the rest are females. If there are 1350…

In an examination 80% candidates passed in English and 85% candidates passed in Mathematics. If 73% candidates passed in…

In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the tota…

If X is 90% of Y, then what percent of X is Y ?

The tax imposed on an article is decreased by 10% and its consumption is increased by 10%. Find the percentage change in…