Given :A cake was cut into 20 equal pieces.The number of pieces served in the party $= 16$.To find :We have to find the fraction of the cake which was not served at the party.Solution :Number of pieces not served in the party $= 20-16 = 4$The fraction of cake ... Read More

Silk is a natural fibre that is made by the silkworm ‘Cocoon’. As it’s a strong fiber, it is mainly used in the textile industry.The production of silk and rearing of silkworms is called sericulture. It is known as ‘Resham’ in the northern part of India, and ‘Pattu’ in southern ... Read More

Lime water is the common name for a dilute aqueous solution of calcium hydroxide.Calcium hydroxide, Ca(OH)₂, is sparsely soluble at room temperature in water."Pure" limewater is clear and colourless, with a slight earthy smell and an astringent/bitter taste. It is basic in nature with a pH of 12.4.Lime water is ... Read More

ElementAn element is a pure substance, which is made up of only one kind of atoms. It cannot be further reduced to simpler substances by any physical or chemical methods. An atom is the smallest unit of an element.Elements are classified into metals, non-metals, metalloids, and noble gases. CompoundA compound ... Read More

Cell organelles are responsible for the organization and proper functioning of a cell, as each of them performs some specific functions in the body.So, if somehow, the organization of the cell is destroyed, the cell will be unable to perform basic functions such as respiration, nutrition, excretion, etc., which will ... Read More

Solids- Solids have the strong intermolecular force and a definite shape and size. Solids can neither flow nor be compressed.Liquids- Liquids have weak intermolecular flow and large intermolecular spaces. Liquids do not have a definite shape but can flow. Gases- Gases have weak intermolecular flow, high compressibility, and no definite ... Read More

Given :Heights of 5 persons are 134 cm, 142 cm, 141 cm, 138 cm, and 135 cm.To do :We have to find the mean height.Solution :Mean $= \frac{Sum of the numbers}{Total number of numbers}$Therefore, the mean height is,Mean $= \frac{134+142+141+138+135}{5}$            $= \frac{690}{5}$            $= 138 cm$. The mean height is 138 cm.

When we eat our food it enters our stomach, here the food is grinded and churned by stomach muscles with digestive juices to break it down into small particles called chyme. After this, the chyme is pushed into the small intestine, where most of the digestion and absorption of our ... Read More

Given :The sum of the digits of a two-digit number is 8, if 36 is added to the number the digits get reversed.To find :We have to find the number.Solution :Let the number be $10x+y$.$x+y=8$It is also given that if 36 is added to the number the digits gets reversed.Therefore, ... Read More

Dear SAchi.Division in integers is nothing but normal division, we just use the sign rules.Like if you divide a positive number by a negative number you will get a negative number as a solution. If you divide a negative number by negative number you will get a positive solution-9/3 = ... Read More