20 total
6 have average of 5 years
6 x 5 = 30
20-6 = 14
14 have average of 8 years
14 x 8 = 112
112 + 30 = 142
142 / 20 = 7.1 years
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
Answer:
6
1, 50.3
Step-by-step explanation:
the second part for question two could be anywhere from 50.1-50.4
I think you’d do (5,8) - (1,3) to get (4,5)
Answer:
-18 and 2
Step-by-step explanation:
- 18 x 2 = -36
-18 + 2 = -16
