A man spends 80% of his income. His income is increased by 20% and he increase his expenditure by 10%. His saving are increased by:

In two successive year 100 and 75 students of school appeared at the final examination. Respectively 75% and 60 % of them passed. The average rate of pass is:

The difference of two numbers is 15 % of their sum. the ratio of the larger number to the smaller number is: 

If 8% of x is the t same as 4 % of y, then 20% of x is the same as:

If C.P of 20 tables is equal to the S.P of 25 tables. Find the loss percentage.

The population of a city is 48,600. If there is a 25% increase in the first year and a reduction of 8% in the second year, then what will be the population of this city at the end of 2 years?

Some students (only boys and girls) from different schools1 appeared for an Olympiad exam. 20% of the boys and 15% of the girls failed the exam. The number of boys who passed the exam was 70 more than that of the girls who passed the exam'. A total of 90 students failed. Find the number of students that appeared for the exam.

In a group of 20 singers and 40 dancers, 20% of the singers are less than 25 years old and 40% of the entire group are under 25 years. What percentage of dancers are under 25 years?