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In the HDI 2023 released by the United Nations, India ranked 130 out of 193 countries , an improvement of three positions from the previous year’s rank.
Four persons ‘A’, ‘B’, ‘C’ and ‘D’ have different amounts with them. ‘D’ has twice amount th...
A right pyramid has an equilateral triangle as its base, with each side measuring 7 cm. The height of the pyramid is given as 32√3 cm. Find the volume...
The area of a rectangular field is 24% of the area of a square field with a perimeter of 80 meters. If the rectangular field has a perimeter of 40 meter...
Curved surface area of cylinder is 646.8 cm2. If ratio of radius to height of the cylinder is 10:4 respectively, then find the base area of t...
The curved surface area of the sphere is 154 cm2 . Find the volume of the sphere (rounded off to one digit after decimal).
The difference between the area of a circle and the area of the rectangle is 290.16 cm2. If the length of rectangle is 25% more and breadth i...
A cylindrical tank has a radius of 4 meters and a height of 7 meters. Water is being pumped into the tank at the rate of 10 cubic meters per minute. How...
The ratio of the height of cylinder and cone is 14:27, and ratio of the radius is 6:7. The cylinder and cone are transformed into two cubes, respectivel...
The sum of the perimeters of a square and a rectangle is 120 metres. If the sum of the length and breadth of the rectangle is 32 cm, then find the area ...