Answer:
Explanation:
If it took 20000 people 20 years to build the Taj Mahal, and each worker works at the same rate, then it would have taken 8000 workers twice as long, or 40 years, to build the Taj Mahal.
This can be calculated by dividing the number of workers by the time it took to build the Taj Mahal, and then multiplying that result by the desired number of workers:
(20000 workers / 20 years) * 40 years = 8000 workers
It's worth noting that the actual construction of the Taj Mahal likely took longer than 20 years, as it was built in the 17th century and the number of workers likely varied over time. Additionally, the number of workers on the project at any given time was likely influenced by factors such as the availability of labor and materials, and the progress of the construction itself.