In an examination, 93 % of students passed and 259 failed. The total number of students appearing at the examination was: 

A man spends a part of his monthly income and saves the rest. The ratio of his expenditure to the saving is 61 : 6. If his monthly income is Rs .8710, the amount of his monthly saving is 

In a company, there are 75% skilled workers and remaining ones are unskilled. 80% of skilled workers and 20% of unskilled workers are permanent. If number of temporary workers is 126, then what is the number of total workers?

If the cost price of 15 tables is equal to the selling price of 20 tables. The loss percent is:

In a college 12% of all the students are interested in sports, 10% of the total students are interested in singing and three-fourth of the total students are interested in dancing and remaining 15 students are not interested in any activity, How many total students are there in the college?

The radius of circle is increased by 1%. How much does the area of the circle increased? 

Products pass successively through the hands of three traders and each of them sells his goods at a profit of 30% of his cost price. If the last trader sold the products for Rs.300, then how much did the first trader pay for them? 

P is 20 percent more than Q and Q is 30 percent less than R. If P is 420, then What is the value of R?