In an examination, it is required to get 300 marks to pass. A student gets 225 marks and is declared fail by 10% marks. What are the maximum marks of the examination ?

Find a single equivalent increase if the number is successively increased by 20%, 25% and 30%?

Calculate the amount spent on commuting:

The increase in the production of Grams (over the previous years) was minimum during the year

A town has population of 20,000 in 1980. In one year i.e. by 1981 it increased by 25%. Next year i.e. in 1982, it decreased by 20%. The next year in 1983 there was an increase of 30%. What is the population at end of 1983?

The price of rice increases by 30%. A family reduced its consumption so that the expenditure of the rice is up only by 10%. If the total consumption of the rice before the price rise was 10 kg per month, then the consumption of rice per month at present (in kg) is:

If the sugar price is increased by 25% by how much percent consumption should be reduced that expense remains same.