Green economy: A solution for the future Dhaka

Bangladesh is a developing country. The growth of this country is not steady enough. The major reasons behind the unsteady growth are lack of energy resources, poor infrastructure, slow implementation of economic reforms, and overpopulation. The above reasons create social uret poverty and huge unemployment. Besides that, Bangladesh is a low-lying river irrigated county along with vast Bay of Bengal sea basin in south. Frequently, the country affected by floods tornadoes, cyclones etc. This rapid climate changes impacting the country's ecology and making imbalance. So, it is high time for Bangladesh to focus on green economy and apply it. Because, the investments in a range of cleaner approaches that lead to enhanced resource efficiency, reduced een economy also promotes the development of basic services and infrastructure as a means of green economy promotes steady growth in income and employment which is driven by targeted carton emission and pollution, and prevention of biodiversity loss and ecosystems degradation. The isting poverty and improving overall quality of life. es can be takes by Dhaka as the capital of Bangladesh to turn the economy -

1. Environmentally friendly and enhancing products and services and services

2. Renewable energy products 

3. Clean transportation and fuels

4. Green buildings

5. Energy efficient manufacturing, distribution, and construction

 6. Reduction of energy, materials and water consumption through high efficiency strategies

7. Switch from carbon to non-carbon components. 

Transition of green economy in essence does some reforms of the economic policies of a country. The reforms include the followings:

National reforms:

a) Abolition of perverse subsidies, taxes and incentives;

 b) Rationalization of land use and urban policies;

c)Introduction of integrated resources and water management 

d) Improvement and implementation of environmental legislation

 e) Appropriate implementation of the stimulus packages.

Energy Efficiency:

Power is an essential factor for developing the socio-economic conditions of our country. Demand for power is increasing day by day. Moving towards energy sustainability will require modifications not only in the way energy is supplied, but in the way it is used as well. Reducing the amount of energy required to deliver various goods or services is also essential in this regard. Energy efficiency and renewable energy are said to be the twin pillars for sustainable energy. The power division of Bangladeshi government has taken a number of initiatives for efficient energy use and reduced consumption of energy such as:

• Steps have been taken to revise the Building Code' inserting energy efficiency and solar energy issues
• Initiatives have been taken in order to build awareness amongst the students, by incorporating Energy Efficiency and Solar Energy issues in the academic curricula of schools, madrasas and colleges
• Installation of solar panels in the government, semi government and autonomous organizations within the next 3 years
• Use of CFL bulb in all ministries and power sector entities Conventional street lights to be replaced by LED and solar lights subsequently
• Public awareness for energy conservation
• The gradual discontinuation of incandescent bulb and electric heater Limiting the use of air conditioners, or keeping temperature within 25 degrees C
• Encouraging the business community for using solar energy I
• ntroducing energy star rating system in the electric appliances through BSTI
• Discouraging the use of neon sign in the markets and shopping malls at night
•  Closing of markets and shopping malls within 8 p.m.

Conclusion: Green economy is a different economic concept than the traditional economic model and it is very important in terms of Bangladesh. Government agencies must be responsive in implementing a green economy policy. But, the real roles have to play by the entire private and public organizations that involved in the economic growth of Bangladesh. In present situation, every sector is suffering from environment hazard. Now, it is the right time to protect all the environmental hazard and should convert all the environmental hazardous works into environment friendly works which can keep environment fresh for the next generation and similarly Bangladesh can able to establish green economy. 

Unemployment and it's deleterious effects on society is the main theme of this passage.

As unemployment creates virulent problems on society as a whole and increased number of unemployment refers increased number of problems, so it is not desirable in the society. 

Worker who is out of work for long period may lose the working capacity as well as the efficiency. Loss of skill means loss of efficiency.

An unemployed man does feel good always. Sometimes disappointment fell upon him and compels him thinking unethical and unsocial thoughts. Thus, unemployment can have negative impact on mind.

In a welfare state, the government of this state assigns a huge amount of allocation from GDP for the social security purpose. Most of the funds go for the unemployment allowance. And obviously, this huge amount of money comes from taxation. So, unemployment provokes government to increase tax rate.

If the level of unemployment is reduced, the government will not spend more for the unemployed people, rather it will spend these funds for the development activities of the country.

Total sample space after tossing 3 coins randomly will be = (HHH, HHT, HTH, THH, HTT, THI, TTH, TTT),

Now, we will find the probability of getting one head and two tails:

In the sample space we can see, a total of 8 types of outcome is possible. 

Among these 8 types of outcomes, the combinations with one head and two tails are (HTT, THT TTH). That means, 3 outcomes.

So, the required probability is 3/8 ans.

(ii) Probability of getting one tail: 

Above the sample space we can see that, a total of 8 types of outcome is possible. 

Among these 1 types of outcomes, the combinations with one tail are (HHT, HTH, THH). That means, 3 outcomes

So, the required probability is 3/8 ans.

(iii) Probability of getting one tail and two heads: 

Above the sample space we can see that, a total of 8 types of outcome is possible.

Among these 8 types of outcomes, the combinations with one tail and two heads are: (HHT, HTH, THH)

i.e: 3 outcomes: So, the required probability is 3/8 ans.

In first 6 days, C will work just two days but A and B will work 6 days.

So total work done by them in 6 days will

= $$\begin{gathered} \left(6\times \frac{1}{12}\right)+\left(6\times \frac{1}{15}\right)+\left(2\times \frac{1}{25}\right) \\ = \frac{1}{2}+\frac{2}{5}+\frac{2}{25} \\ = \frac{25+20+4}{50} \\ =\frac{49}{50 } \end{gathered}$$

Remaining work =$1-\frac{49}{50}=\frac{1}{50}$ part of the work.

So. (A and B) 1 day's work= $\frac{1}{12}+\frac{1}{15}=\frac{4+5}{60}=\frac{9}{60}=\frac{3}{20}$

In 7^th day. C will not help them. Only A and B will do the $\frac{1}{50}$  part of the work because $\frac{3}{20}>\frac{1}{50}$ 

Now, $\frac{3}{20}$ part of the work is done by A and B in 1 day 

$\frac{1}{50}$ part of the work is done by A and B in = $\frac{20}{3}\times \frac{1}{50}=\frac{2}{15}$ day 

Total work will be completed in = $\left(6+\frac{2}{15}\right)=6\frac{2}{15}$ days 

ans. The number of days required to complete the work is $6\frac{2}{15}$ days 

Suppose, the price of a shirt Tk. x

 and the price of a pant is Tk. y

According to the question:

$$\begin{gathered} x+y=1300 ..............\left(i\right) \\ 1.05x+1.1y=1405.............\left(ii\right) \end{gathered}$$

Now, we multiply equation (i) by 1.1 and subtract equation (ii) from equation (i)

$1.1x+1.1y=14301.05x+1.1y=14050.5=25$

$$\begin{gathered} x=\frac{25}{0.05} \\ x=500 \end{gathered}$$

Putting the value of x in equation (i) we get.

500+y=1300 

y=1300-500 = 800 

ans. Shirt Tk. 500, Pant Tk. 800.

Let, the length of the rectangle is x meter 

And the width of the rectangle is y meter

According to question,

$$\begin{gathered} 2y=x+10 ............ \left(i\right) \\ And xy=600 ....... \left(ii\right) \\ From equation \left(ii\right) \\ xy=600 \\ x=\frac{600}{y}...........\left(iii\right) \\ Putting the value of x in equation \left(i\right) \\ 2y=x+10 \\ \Rightarrow 2y=\frac{600}{y}+10 \\ \Rightarrow 2y^2-10y-600=0 \\ \Rightarrow y^2-5y-300=0 \left[Dividing both sides by 2\right] \\ \Rightarrow y^2-20y+15y-300=0 \\ \Rightarrow y\left(y-20\right)+15\left(y-20\right)=0 \\ \Rightarrow \left(y-20\right)\left(y+15\right)=0 \\ \therefore \left(y-20\right)\left(y+15\right)=0 \end{gathered}$$

Since width cannot be (-)ve. So we find y=20

That means the width of the rectangle is 20 meters

The length of the rectangle is $x=\frac{600}{y}$ 

$\therefore x=\frac{600}{20}=30$

The length of the rectangle is 30 meters.

 The perimeter of the rectangle = $2\times (30+20) = 2\times 50=100$ meters. 

ans. The perimeter is 100m. 

Let, the initial price of each pencil is Tk. x

And the initial price of each eraser is Tk y

 According the questions, 5x+6y= 80 …………..(i) 

After price increase of pencil, the new price I pencil is (x+20% of x) Tk.

$x+\frac{20x}{100}=\frac{6x}{5}$ tk. 

According to the question, 

$$\begin{gathered} \left(2\times \frac{6x}{5}\right)+\left(3\times y\right)=39 \\ \Rightarrow \frac{12x}{5}+3y=39 \\ \Rightarrow \frac{12x+15y}{5}=39 \\ \Rightarrow 12x+15y=195 ...........\left(ii\right) \end{gathered}$$ 

Now, multiplying equation (i) by 5 and equation (ii) by 2 and subtracting equation (ii) from equation (i) we get , 

$25x+30y=40024x+30y=390x=10$

New price of a pencil will be = $\frac{6x}{5}=\frac{6\times 10}{5}=12$ tk. 

ans. The new price of each pencil is 12 Tk.