Question
The circumference of a circle is equal to the perimeter
of a rectangle whose length and breadth are in ratio 5:3, respectively. If the area of the rectangle is 1815 cm2 , then find the radius of the circle.Solution
John had to multiply 'a' by 'b'. He however multiplied 'a' by 22.5 and obtained 423 as the product. Selina also had to multiply 'a' by 'b'. She however ...
Area of a rectangle is equal to the total surface area of a hemisphere having volume 1458 cm³ . Find the perimeter of the rectangle if its length is 12...
The lateral surface area of frustum of a right circular cone, if the area of its base is and the diameter of circular upper surface is 4 cm and slant he...
One side of a parallelogram is 25 cm and its distance from the opposite side is 9 cm. The area of the parallelogram is:
A hollow cylindrical container has an inner radius of 5.5 cm, a length of 15 cm, and a thickness of 3 cm. Calculate the volume of the container. (Use π...
The total surface area of a square-based right pyramid is 1536 m², of which 37.5% is the area of the base of the pyramid. What is the volume (in mᶟ) ...
The perimeter of a rectangle is 130% more than perimeter of a square of side 10 cm. If the length of rectangle is 250% more than side of square then fin...
Three metallic cubes whose sides are 15 cm, 20 cm and 25 cm respectively are melted and converted into a single cube. If there is no loss of metal in t...
A kid has toys of three different shapes and he has labelled them as 'A', 'B' and 'C'. The following is also known about the toys: (Take π = 22/7)
...The length of the side of a cube is 7 cm. What is the total surface area of the cube?
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