50 men working 10 hours daily can complete a job in
20 days. In how many days can 80 men do the job if
the working hours are reduced by 50%.
A. 20 days
B. 18 days
C. 25 days
D. 28 days
ans is 25 need solution if any son of b*tch gives any sh*t he/she will be reported.
Answers
Answer:
80 men working 5 hours daily can complete a job in 25 days.
Step-by-step explanation:
Given that:
- 50 men working 10 hours daily can complete a job in 20 days.
Finding the time taken by one man to complete the job:
50 men can complete a job in 20 days.
∴ 1 man can complete the same job in (20 × 50) days.
Finding the time taken by 80 men to complete the job:
1 man can complete the job in (20 × 50) days.
∴ 80 men can complete the same job in 1000/80 days.
∴ 80 men can complete the same job in 12.5 days.
Finding the time taken by 80 men to complete the job if the working hours are reduced by 50%:
80 men can complete the job in 12.5 days if they work 10 daily.
The working hours are reduced by 50%,
They have to work twice i.e., 80 men can complete the job in (12.5 × 2) days if they work 5 daily.
∴ 80 men can complete the job in 25 days if they work 5 daily.
Answer:
Given :-
- 50 men do 10 hours work daily complete work in 20 days
- 80 men do job in 50% time
To Find :-
Days required
Solution :-
1 man may do job in (50 × 20) days =
1 man may do job in 1000 days
Now,
80 man = 1000/80 = 12.5
Now,
When hours reduced 50% then we will multiply days by 2
Total days = 12.5 × 2 = 25 days.
Hence
Option C