Price of sugar rises by 20%. By how much percent should the consumption of sugar be reduced so that the expenditure does not change?

The prices of two articles are in the ratio 3 : 2 respectively. The price of the first article is increased by 40% and that of the second article is decreased by x%. If the new ratio of both the articles is : 7 : 3 then what is the value of x?

A man earns a profit of 60% when he sells an article at 4/3 of the original selling price. Find the percent profit he makes at original price.

The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student?

Two students appeared for an examination. One of them secured 9 marks more than the other and his marks were 56 % of the sum of their marks. The marks obtained by them are 

A is 40 % more than B and B is 60% less than C. If C is 60 % more than D, then which of the following is true?

A basket contains 350 eggs. If 12% of the eggs are rotten, how many eggs are good enough to be sold?

If A earns $$ {33{1\over 3} \%}$$  more than B, how much percent does B earn less than A?