The length and breadth of a rectangular field are in the ratio of 3 : 2 . If the perimeter of the field is 80 m, its breadth (in meters) is: 

A Solid cylinder has total surface area of 462 sq.cm. Its curved surface area is one third of the total surface area. Then the radius of the cylinder is

The length of the two sides forming the right angle of a right-angled triangle are 6 cm and 8 cm, then find the length of its circum radius:

The area ( in m² ) of the square which has the same perimeter as a rectangle whose length is 48 m and is 3 times its breadth is : 

Two circles of radii 4 cm and 9 cm respectively touch each other externally at a point and a common tangent touch them at the points P and Q respectively. Then the area of square with one side PQ, is:

How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8 m x 6 m x 22.5 cm?

The length of the diagonal and the breadth of a rectangle is 13 cm and 5 cm respectively. Calculate its area (in cm²).

If the height of a given cone be doubled and radius of base remains the same, the ratio of the volume of the given cone to that the second cone will be -