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Q.3. Boston, Churchill and David are three workers, employed by a contractor. They completed the whole work in 10 days. Initially, all of them worked?
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Q.3. Boston, Churchill and David are three workers, employed by a cont...
Initial Situation:
Boston, Churchill, and David are three workers employed by a contractor to complete a certain job. They finished the entire work in 10 days. Initially, all of them worked together to complete the task.

Explanation:
1. Efficiency of Workers: Each worker has a certain efficiency level when it comes to completing the work. Let's assume their efficiencies are represented by the variables B, C, and D for Boston, Churchill, and David respectively.
2. Combined Efficiency: When all three workers work together, their combined efficiency is the sum of their individual efficiencies. Therefore, the combined efficiency of Boston, Churchill, and David working together is represented as (B + C + D).
3. Work Completed: Since the entire work was completed in 10 days with all three workers working initially, the total work is represented as 1 unit.
4. Work done in a day: The work done by all three workers in one day is equal to their combined efficiency (B + C + D).
5. Work done in 10 days: Since they completed the work in 10 days, the total work done by all three workers in 10 days is 10 times their combined efficiency, which is 10(B + C + D).

Mathematical Representation:
Given that the total work is equal to 1 unit and all three workers completed it in 10 days, we can represent this as:
10(B + C + D) = 1
This equation represents the combined efficiency of all workers working together to complete the job in 10 days.

Conclusion:
In conclusion, the initial scenario where Boston, Churchill, and David worked together to complete the job in 10 days can be explained by understanding the individual efficiencies of the workers and how their combined efficiency allows them to finish the work within the specified time frame.
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Q.3. Boston, Churchill and David are three workers, employed by a contractor. They completed the whole work in 10 days. Initially, all of them worked?
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