In an examination, 30 percent of the students failed in English and 25 percent of the students failed in mathematics. If 15 percent of the candidates failed in both subjects, then what percentage of students passed in both subject.

The strength of a school increases and decreases in every alternate year by 10 %. It started with increase in 2000, then the strength of the school in 2003 as compared to that in 2000 was : 

A house worth Rs.1,50,000 is sold by X at a 5% profit to Y, Y sells the house back to X at a 2% loss. Then find profit and loss in the entire transaction. 

Prashant's monthly income is 30% more than that of Vimal. Vimal's monthly income is 20% less than that of Abhishek. If half of the value of the difference between the monthly income of Prashant and Abhishek is Rs.1800, what is the monthly income of Vimal? 

Average of ten positive numbers  is x. If each number is increased by 12%  then x is increased by

A man loses 20% of his money. After spending 25% of the remainder, he has Rs.480 left with him. How much money did he originally have?

498 is 17 % less than a number then the number is: 

If the income of Ram is $$ 12{1\over2}\%$$ more than that of Shyam, the income of Shyam is less than that of Ram by