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? 

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: 

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?

Twenty five percent of Pranab’s annual salary is equal to eighty percent of Surya’s annual salary. Surya’s monthly salary is forty percent of Dheeru’ monthly salary. If Dhreeu’s annual salary is Rs 6 lacs, what is Pranab’s monthly salary? (At some places annual income and in some place monthly income are given)

In an election between two candidates, 75% of the voters cast their votes, out of which 2% votes were declared invalid. A candidate got 9261 votes which were 75% of the valid votes. The total number of voters enrolled in that election was:

The ratio 5 : 4 expressed as a percent equals :

95 percent of 4598 will be___

On selling an article on certain price a shopkeeper gets a loss of x%. If he doubles the selling price he will get a profit of 30%. Find the value of x.