The number of hours it would take for half of the workers to complete the same job is 96 hours.
<h3>How much does it take to 6 workers to complete the job?</h3>
It is already known 6 workers working at the same rate can complete this job in a total of 48 hours, which means each of the workers represents approximately:
- 8 hours of work (48 / 6 = 8).
<h3>What happens if the number of workers is reduced?</h3>
In this case, it expected the total of hours to complete the same job increase. Moreover, the time will proportionally increase depending on the reduction of workers. Here are some examples:
- -1/3 of workers = +1/3 of time
- -1/5 of workers = + 1/5 of time
This means by reducing the workers to half of the team (-1/2) the time will duplicate.
Note: This question is incomplete; here is the possible complete question.
All the workers on a 6 person team work at the same rate. All six members of the team, working together, are able to pour foundations in 48 hours. How many hours would this job take if only half of the team worked on this task.
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The Machine Learning is known to be a textbook that was written by Tom Mitchell, McGraw Hill in the year 1997.
<h3>What is the book about?</h3>
This book is known to give student a kind of single source introduction to the scope or field of machine learning.
Note that It is said to be a kind of a well written text book that is made for advanced undergraduate, graduate students, and also it can be used by developers and researchers in regards to artificial intelligence or statistics is assumed.
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Considering the definition of percentage by mass, the sample of pure lithium nitrate contains 7.99% lithium by mass.
<h3>Definition of percentage by mass</h3>
The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.
In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.
The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:

<h3>This case</h3>
Because percent by mass indicates the ratio of solute to solution based on mass, if the sample has twice the mass of the first sample, the ratio remains constant.
So the percentage by mass is the same.
That is, the sample of pure lithium nitrate contains 7.99% lithium by mass.
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