Social networking on websites is a social and technological innovation that cannot be ignore anymore in the workplace. The preponderance and ubiquity of online social networks in recent ye has caused business leaders to think about their effect on business processes. More and more peo are using social networking sites to connect to friends and family. search for business cont collaborate on work processes that cut across organizational hierarchies, and create databases social interests, news links, and affiliations that may influence their buying decisions. Organization that learn and adapt faster to social networking trends will have a clear advantage in the mat place and ultimately increase their bottom lines.

There are three basic types of social networking websites: ‘free-for-all’ social websites, include Facebook, MySpace, Ning, and Friendship; professional websites, including LinkedIn, FastPitch, a Plaxo; and industry-specific websites like 1-Meet and Research Gate.

When it comes to social networking in the workplace, there is no one-size-fits-all approach. T benefits of social networking platforms vary based on platform type, features and the comp itself. Social networking platforms may allow organizations to improve communication u productivity by disseminating information among different groups of employees in a more efficient manner. While it is not meant to be all- inclusive, the list below outlines some of the position advantages and disadvantages of social media use by workplaces.

 Possible advantages:

• Facilitates open communication, leading to enhanced information discovery and delivery. 
• Allows employees to discuss ideas, post news, ask questions and share links. 
• Provides an opportunity to widen business contacts. 
• Targets a wide audience, making it a useful and effective recruitment tool.
• Improves business reputation and client base with minimal use of advertising.
•  Expands market research, implements marketing campaigns, delivers communications and dire interested people to specific web sites. 

Possible disadvantages:

• Opens up the possibility for hackers to commit fraud and launch spam and virus attacks.
•  Increases the risk of people falling prey to online scams that seem genuine, resulting in data: identity theft.
• Potentially results in negative comments from employees about the company or potential les consequences if employees use these sites to view objectionable, illicit or offensive material.
•  Potentially results in lost productivity, especially if employees are busy updating profiles, etc.

 Social networks have evolved into a mix of socializing and working, and lead to a degree sacrificing privacy. Many businesses are struggling with the use of social networking sites a might benefit from the following changes. A necessary first step for any company is to creat social networking policy. By setting a policy, employees know the company's rules regarding use of social networking sites. In addition to establishing a policy for employees, a company want to determine how much use will be made of social networking sites for marketing purposes.

A company should work with, not against, social networking websites. Working against social networking websites is unproductive. Companies that fight the advancing technology are fighting a losing battle. Technology constantly the environment in which a company operates and management should be aware of these changes. It is in the best interests of a company to know what websites are available to its employees, be willing to grant access to certain websites to keep employees productive, and be able to monitor usage of social networking websites. 

Mr. Zahid 1920 মিটার দীর্ঘ একটা Road 120 দিনে তৈরী করার জন্য একটি চুক্তি করলেন। এজন্য তিনি 160 জন শ্রমিক নিয়োগ করলেন। কিন্তু 24 দিন পর দেখলেন যে, কাজের মাত্র $\frac{1}{8}$ অংশ কাজ সম্পন্ন হয়েছে। এখন তিনি যদি সময়মতো কাজটি সম্পন্ন করতে চান তবে অতিরিক্ত কতজন লোক নিয়োগ করতে হবে?

Given time to complete the task= 120 days & Work already done = $\frac{1}{8}$ Part

Now, after 24 days, remaining time = 120-24= 96 days

& After part work done, remaining task=$\left(1-\frac{1}{8}\right)=\frac{7}{8}$ Part

Now, 24 days are needed to do $\frac{1}{8}$ of the work by 160 workers

1 day is needed to do of the work by $160 \times 24$ workers

1 day is needed to do 1 of the work by $\frac{160\times 24\times 8}{1}$ workers

96 days are needed do$\frac{7}{8}$  of the work by $\frac{160\times 24\times 8\times 7}{1\times 96\times 8}=280$ workers

Additional workers are needed = $280-160=120$