Question

A builder employed 4,000 workers to work on a residential project. At the end of the first year, 10% workers were removed, at the end of the second year, 5% of
those working at that time were retrenched. However, to complete the project in
time, the number of workers was increased by 15% at the end of the third year.
How many workers were working during the fourth year?​

Answer 1

Answer:

3933

Step-by-step explanation:

4000×10/100=400

4000-400=3600

3600×5/100=180

3600-180=3420

3420×15/100=513

3420+513=3933

at the end of 4th year 3933 people were working