The average of 5 consecutive even numbers is A. If next 5 even numbers are also included, then what is the average of these 10 numbers?

There is a loss of 25% on selling an article for Rs 300, then what is the cost price of the article?

The ratio of the cost price and selling price of an article is 10 : 11. The gain per cent is:

Two containers have acid and water mixed in the ratio 3:1 and 5:3 respectively. To get a new mixture with ratio of acid to water as 2:1, the two types of mixture have to be mixed in the ratio?

A can do a piece of work in 15 days. B is 25% more efficient than A, and C is 40% more efficient than B. A and C work together for 3 days and then C leaves. A and B together will complete the work in:

The perimeter of a rectangle is 132 m and the difference between the length and breadth of the rectangle is 14 m then find the perimeter of square whose area is 16 m² less than the area of the rectangle.

In the following diagram, three different products (in thousands) produced by a company in 5 years are given and after studying them carefully, answer the following questions.

Three products produced by a company in different years (in thousands)

What is the difference between the CD produced between the year 2007 and the year 2009?

On increasing the radius of circle by 1 cm, its area is increased by 44 cm² .The original radius of the circle is -