In a group of students, 70 % can speak English and 65 % can speak Hindi. If 27 % of the students can speak none of the two languages, then what percent of the group can speak both the languages? 

The price of tea increase by 32 % and so a housewife’s expenditure on tea also increases by 10%. If she bought 10 kg earlier, what is the quantity bought now?

Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.

In an election between two candidates, the candidate getting 60 % of the votes polled, is elected by a majority of 14, 000 votes. The number of votes obtained by the winning candidates is 

A number is divided into two parts in such a way that 80% of 1^st  part is 3 more than 60% of 2nd part and 80% of 2nd part is 6 more than 90 % of the 1st part . Then the number is: 

Two numbers are less than the third number by 50% and 54% respectively. By how much per cent is the second number less than the first number? 

if the monthly salary of a fan employee is increased by $$ 2{2\over 3}\% $$, he gets 72 rupees more. His Monthly salary (in rupees) is: