The first round will result in 1000 * 10% = 100 employee layoffs. There are 1000 - 100 = 900 employees remaining. The second round will result in 900 * 10% = 90 employee layoffs. There are 900 - 90 = 810 employees remaining. The third round will result in 810 * 10% = 81 employee layoffs. The total number of of employees laid off is 100 + 90 + 81 = 271.
This justifies what answer for what question? Q & A:
A company has 1000 employees. There will be three rounds of layoffs. For each round of layoff, 10% of the remaining employees will be laid off. How many employees will be laid off in total?
271