Answer:
Step-by-step explanation:
Required man days to complete the job = 8 * 6
= 48 Man Days
Required labors to complete the job by 15 days = 48/15
= 3.2
It means, it is required 4 labors can complete the certain work by 15 days
There are 35 students in the class
We would divide 21 by 60%
21/0.6 = 35 students.
