Question

640 workers of desmark, 4 out of 5 is married, how many is non married of desmark?

Answer 1

Total no. of workers = 640
no. married couples =
$\frac{4}{5} \times 640$
= 512
Therefore no. of married is 512.
No. of unmarried = 640-512
=128
So, no. of unmarried are 128.

Answer 2

Answer:

128

Step-by-step explanation:

640-640/5*4 = 640-128*4 = 640- 512 = 128