Question
A metal container has external dimensions of 30 cm in
length, 25 cm in width, and 20 cm in height. The thickness of the metal is 2 cm. Calculate the volume of metal used to make the container.Solution
l=30, b=25, h=20, and x =2 Volume of hollow cuboid = l× b× h –(l-2x) (b-2x) (h-2x)   --where, x is the thickness of walls of the cuboid = 30×25×20 – (30-4) (25-4) (20-4) =15000-26×21×16 =15000-8736 = 6264cm3
Which one of the following essential nutrient elements is absorbed both as an anion and a cation by some plants?
Cropping frequency up to two, big size ponds & moderate stocking rate are the characteristics of:
Bio-fertilizers are used as:
The most critical stage for irrigation in wheat is CRI. In wheat, CRI stage arises at (DAS)………………………
...The most popular fine wool sheep breed of the world is -
Trickling bed is terminology used in
The headquarter of Cotton Corporation of India is located at
Which of the following minerals are primary minerals of Calcium?
The first 'true' allopolyploid triticale according to today's definition was bred in 1888 by the famous German plant breeder W. Rimpau who managed to c...
Additives which are used to maintain a uniform dispersion of one liquid in another, such as oil in water.
Relevant for Exams:
