Given: Running at an average Of 40 Km/Hr ,a bus competes a journey In 4 $\frac{1}{2}$ To do: Find how much time will the return journey will take if speed is increased to 45km/hr. Solution:Speed = 40 km/h Time = 4.5 hours  Distance = Speed $\times$ Time = 40 $\times$ 4.5 ... Read More

A neutralization reaction is when an acid and a base react to form water and salt.It involves the combination of H+ ions and OH- ions to generate water. When a solution is neutralized, it means that salts are formed from equal weights of acid and base.  ... Read More

Gold is unaffected by air, water, all acids but except aqua regia, which is a mixture of hydrochloric acid and nitric acid. This solution can dissolve gold. Gold does react with halogens. It will, for example,  react very slowly with chlorine gas at room temperature to form gold chloride, AuCl3. Read More

Hello Hiya, The egg is the first stage of a silkworm’s life cycle. Adult moths mate with each other then the female moth lays an egg about the size of an ink dot during summer or the early fall.The caterpillar or larvae are hatched from the eggs of the silk ... Read More

In chemistry, Group is a set of chemical elements in the same vertical column of the periodic table. The elements in a group have similarities in the electronic configuration of their atoms, and thus they exhibit almost the same physical and chemical properties. There are 18 groups in the periodic ... Read More

Garbage is a Waste or unwanted or unusable materials. It is any substance which is discarded after primary use or is worthless, defective and of no use.  The seven most common types of garbage are:1. Liquid or Solid Household Waste. This can be called 'municipal waste' or 'black bag waste' ... Read More

Natural fibres- Natural fibres are the fibres that are obtained from plants, animals or mineral sources. Some of the examples are cotton, silk, wool etc. Natural fibres are divided into two types- 1. Plant fibres- plant fibres are fibres that are derived from plants. Eg. Cotton and Jute. 2. Animal ... Read More

Synthetic fibres are those fibres which are made by humans through chemical synthesis, whereas natural fibres are those that are directly derived from living organisms. Synthetic fibres are created by a process known as polymerization. Examples- Rayon, Nylon, Polyester, etc.RAYONNYLONPOLYESTER1. Also known as Artificial Silk.1. The first synthetic made ... Read More

A coconut tree is a plant that belongs to the family Arecaceae. There are over 150 species of coconuts that can be found in 80 different countries throughout the world. Coconut tree grows only in the tropical climate. This plant grow on the sandy soil, requires a lot of sunlight and ... Read More

Given :Three angles of a quadrilateral are 50°, 130°, 120°.To do :We have to find the measure of angle x.Solution :Sum of the angles in a quadrilateral is 360 degrees.Therefore,$50°+130°+120°+x=360°$$x+300°=360°$$x=360°-300°$$x=60°$Therefore, the measure of x is 60°.