Crop: When same type of plants are grown and cultivated at one place in huge quantity is known as a crop.\r\rThere are two types of crop based on their season of cultivation: Kharif crop and Rabi crop.\r\rKharif crops are the crops which are grown during the monsoon or rainy season ... Read More

Given :The given expression is $2+3-7\times 2$.To do :We have to evaluate the given expression.Solution :$2+3-7\times 2 = 5 - 14$                        $ = -9$Therefore, the value of the given expression is $-9$.

In mathematics, trailing zeros are a sequence of 0 in the decimal representation of a number, after which no other digits follow. Trailing zeros to the right of a decimal point, as in 12.3400, do not affect the value of a number and may be omitted if all that is ... Read More

Celsius to FahrenheitThe formula to convert temperature from Celsius to Fahrenheit is $(C \times \frac{9}{5}) + 32° = F.$. For example, 0 degrees Celsius isFahrenheit is $F = (0\times \frac{9}{5}) + 32$=> F = 32°  

Given :Two numbers are in the ratio 9:2.The smaller number is 320.To do :We have to find the larger number.Solution :Let the numbers be 9x and 2x.Therefore,$2x=320$$x = \frac{320}{2} = 160$So, $9x = 9 (160) = 1440$Therefore, the larger number is 1440.

Divisibility:In mathematics, a number is said to be divisible by another number if the remainder is 0.  Divisibility rules are a set of general rules that are often used to determine whether or not a number is evenly divisible by another number.

Given :The given rational number is $\frac{1}{16}$.To do :We have to express the given rational number as a decimal.Solution :$\frac{1}{16}$$\frac{1}{16}= \frac{1 \times 100}{16 \times 100}$$=  \frac{25}{4\times 100}$$= \frac{25 \times 100}{4 \times 100 \times 100}$$= \frac{25 \times 25}{100 \times 100}$$=  \frac{625}{10000}$$= 0.0625$Therefore, $\frac{1}{16}$ can be expressed as 0.0625.

A seed drill is a machine used for placing the seeds in a continuous stream in furrows at uniform places and at a controlled depth. It has arrangements for covering the seeds with soil after sowing them to ensure that the seeds are safe from birds. Also, this method is ... Read More

Evolution of gas occurs during a double displacement reaction where one of the products is a gas. For example, carbonic acid breaks down to water and carbon dioxideH2CO3  ---> H2O + CO2sulfurous acid breaks down to water and sulfur dioxideH2SO3 --> H2O + SO2ammonium hydroxide breaks down to water and ammonia ... Read More

Given :The given expression is $\frac{9}{23} x =1$. To do :We have to find the value of x.Solution :$\frac{9}{23} x =1$$x = \frac{23}{9} \times 1$$x =\frac{23}{9}$Therefore, the value of x is $\frac{23}{9}$.