Dutch Bangla Bank || Sales Manager (18-09-2024)

"The future depends upon what we do in the present" is a very famous quote by Mahatma Gandhi which is the best way to describe the topic. An individual faces many challenges in life whether it is an exam to crack or an essay to write. And not every one of us is great at everything. Some might be good at writing but lack reasoning or vice versa. Most people neglect their weaknesses and 'only' work on what they are good at. Some might say that it is the right thing to do, to work at your strength and be better at it. But the more we avoid our problems the worse it gets. Because it might pose a bigger threat in the future.

We should start working on our weaknesses and problems early on when they are still small and manageable instead of waiting and turning them into something way bigger and challenging. This law does not only apply to individuals but to every situation. Whether it is deforestation or global warming, this law is inevitable. Carbon emission has become quite a problem now. Though carbon is essential in the environment for plants to survive, the excessive emission of carbon along with other toxic greenhouse gases has become quite a big headache now. But many companies and governments all around the globe are trying to reduce this problem before it becomes a very big threat. They are making and promoting electric and hydrogen vehicles which are sustainable as well as eco-friendly alternatives to diesel and petrol vehicles which contribute to the most carbon emissions in the air. We are also switching to more sustainable resources such as solar, wind, and thermal power before the problem gets too rough and out of our hands. One good example is the 17 sustainable development goals.

Let the unit digit is b and tenth dight is a So the number = 10a + b

According to first condition, a + b = 16 ........(i)

According to second condition, 

10a + b + 18 = 10b + a

= 10b + a - 10a - b = 18

= 9b - 9a = 18

= b - a = 2 ........ (ii)

By adding equation (i) and (ii),

a + b + b - a = 16 + 2

= 2b = 18

= b = 9

From equation (i),

a + b = 16

= a + 9 = 16

= a = 7

The original number 

= 10a + b

= $10 \times 7$ + 9

= 79 (Answer)

Dolar's 1 hour's work = $\frac{1}{4}$

(Zoha & Khadem)'s 1 hour's work = $\frac{1}{3}$

(Dolar & Khadem)'s 1 hour's work  = $\frac{1}{2}$

(Dolar, Zoha & Khadem)'s 1 hour's work $=\frac{1}{4}+\frac{1}{3}=\frac{7}{12}$

Zoha's 1 hour's work  = $\frac{7}{12}-\frac{1}{2}$= $\frac{1}{12}$

Time taken by Zoha to complete the work 12 hours  

Let cost price of the product is x ATQ,

$\frac{1920-x}{x}\times 100= \frac{x-1280}{x}\times 100$

=  1920 - x = x - 1280

= 2x = 3200

= x = 1600

At 25% the selling price

$= 1600 + 1600 \times \frac{25}{100}$

= 2000 Tk