Given: $\frac{1.98 \times 1.98-1.02 \times 1.02}{0.96} $To do: Solve the followingSolution: $\frac{1.98 \times 1.98-1.02 \times 1.02}{0.96} $ = $\frac{1.98^2 -1.2^2}{0.96}$ Using identity $a^2 - b^2 = (a+b)(a-b)$ = $\frac{(1.98+1.02)(1.98-1.02)}{0.96}$ = $\frac{3.00 \times 0.96}{0.96}$=3Therefore, the solution of the expression is 3

The limb is commonly used for human arm and leg which is commonly known as the upper limbs and lower limbs respectively, and wing of a bird and for the four-legged animals, every leg is a limb. So the function of forelimbs or upper limbs in humans is used ... Read More

Solution :5-digit numbers starting with 10000 and end with 99999. So, the greatest 5-digit number is 99999.

The differences between Coal and Petroleum are as follows:- COAL PETROLEUM1. Coal is a power resource, fossil fuel and fund resource. 1. Petroleum is a power resource, fossil fuel and fund re­source. 2. Coal used directly in industries and indirectly for pro­duction of thermal power.2. Petroleum is also used directly ... Read More

Fibres are used to make yarn; which in turn used to make fabric. Fibres are thread-like structures that are long, thin and flexible. These may be spun into yarns and then made into fabrics. There can be different types of fibres. On the basis of their origin, fibres are classified ... Read More

Ductility is the physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking. A ductile substance can be drawn into a wire.Most metals are ductile materials, including gold, silver, copper, erbium, terbium, and samarium.

Electric Power:Electric Power is the electrical energy supplied to an electric circuit per unit time or, the rate at which the work is being done in an electrical circuit is called electric power. The source of this power is the cell or battery. The SI unit of power is watt ... Read More

Given:In a fraction, twice the numerator is 2 more than the denominator is added to  numerator and denominator the new fraction is $\frac{2}{3}$ To do: Find the original fractions Solution:Let the fraction by $\frac{x}{y}$$ 2x = y + 2$; or$ y = 2x - 2$and $\frac{x+3}{y+3} = \frac{2}{3}$Substituting $\frac{x+3}{2x-2 + 3} = ... Read More

Given: Hari Runs 500m In a minuteTo Do:  Find the speed at which Hari runsSolution:Distance ran by Hari = 500 metersTime taken to travel that distance = 2 minutes                                                               = 2 x 60 s                                                               = 120 seconds Speed = $\frac{Distance}{Time}$             =$\frac{ 500}{120}$ = 4,17 meter/sec or 4.17 m/s Therefore Hari travels at a speed of 4.17m/s 

Given:The width of a rectangle is two-third of its length. The perimeter is 180cm To Do:  Find the dimension of rectangle Solution: Let Length of rectangle = $x$;  Width = $\frac{2}{3}$ of length = $\frac{2x}{3}$Perimeter of rectangle = $2(l + b)$                ... Read More