Question

640 workers if 4 out every 5 workers are married how many non married workers are employed by desmark

Answer 1

If 4 out of every 5 workers are married, then 4/5 of the workers are married and 1/5 of the workers are non-married.
To find the number of non-married workers, we need to multiply 1/5 by the total number of workers:
1/5 * 640 = 128
Therefore, there are 128 non-married workers employed by Desmark.