A job can be completed by 12
men in 12 days. How many ex-
tra days will be needed to com-
plete the job if 6 men leave after
working for 6 days?
(1) 3 days (2) 6 days
(3) 12 days (4) 24 days
Answers
Answered by
0
Answer:
s1q
Step-by-step explanation:
6 more days required
Answered by
0
Answer:
6 days will be needed to complete the job
Step-by-step explanation:
Given that a job can be completed by 12 men in 12 days
Total job = 144 man days work
1 men 1 day work = 1 man day
12 men 1 day work = 12 man days
12 men 6 days work = 72 man days
Work left after 6 days = (144 - 72) man days = 72 man days
Given that 6 men left after 6 days
Men left = 12 - 6 = 6 men
6 man days work by 6 men takes 1 day
72 man days work by 6 men will take = \frac {72}{6} = 12 days
Total days initially = 12
Days left after 6th day= 12 - 6 = 6
Days needed after 6th day to complete remaining work = 12
Hence, extra days needed = 12 - 6 = 6 days
Thus, 6 days will be needed to complete the job
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