Answer:
a) 8780
c) i) 1159
ii) 1990
d) 9611
Explanation:
a) What was the total number of workers at the beginning
Solution:
Total number of workers at the beginning
= 2340 + 3455 + 675 + 960 + 1350
= 8780
c) How many people: i) Lost job
Solution:
The first company laid off 1 worker for every 5 workers,
Workers employed were 2340 and 1 worker laid for every 5 workers. So,
2340/5 = 468
Hence 468 lost job in first company.
If you see the statement while the other three recruited 2 new workers for every 3. Assuming that the first two companies laid off 1 worker for every 5 workers, then for the second company:
Workers employed were 3455 and 1 worker laid for every 5 workers. So,
3455 / 5 = 691
Hence 468 lost job in second company.
Now total workers that lost job:
468 + 691 = 1159
ii) Got job
Solution:
As the other three companies recruited 2 new workers for every 3. Thus the number of people who got job in these three companies are:
= (675 * 2 + 960 *2 + 1350 *2) / 3
= (1350 + 1920 + 2700) / 3
= 5970 / 3
= 1990
Hence 1990 people got the job.
d) What was the total number of workers finally
Solution:
Total number of workers:
8780 number of workers at the beginning
1159 from companies who lost job
1990 from companies who got job
So adding the workers who got job in the workers at beginning and subtracting the workers who lost job we get:
total number of workers finally:
= 8780 + 1990 - 1159
= 9611
Hence total number of workers finally are 9611.