From which source is the purple dye known as litmus solution extracted?
Litmus solution, used as a pH indicator, is derived from lichen—a symbiotic organism consisting of algae and fungi. This natural indicator changes color in response to the acidity or alkalinity of a solution.
A solid cylinder has total surface area of 1848 sq.cm. Curved surface area is 1/3rd of its total surface area. The volume of the cylinder is:
The area of four walls of a room is 128 cm2. If the length and breadth of the room were equal and the height of the room is 8 cm, then what i...
If the diameter of a sphere is 63 cm, then what is the total surface area of the sphere?
If two complementary angles are in the ratio of 5:1, find the greater angle.
The perimeter of a rectangle of length 2(x + 5) cm and breadth 2(x + 2) cm is double the perimeter of a square of area 324 cm². Find the area of the re...
The length of the side of a cube is 7 cm. What is the total surface area of the cube?
If the volume of a cuboidal tank is 2430 m3 and the ratio of the length, width and height of tank is 6:5:3 respectively then find the height ...
The radius of a circle is equal to the radius of base of a cone. If the diameter of the circle is 35 cm and the height of cone is 18 cm, then find the v...
The area of a circle got increased by 22 cm² when the radius was increased by 1 cm. d by 1 cm. What was the original radius?
The ratio of males and females in a zoo is 6:7 respectively and the percentage of children among males and the percentage of children among females are ...
