Question

A building can be completed in 5 months with 400 workers.In how many months will it complete with 250 workers​, how many months will take to complete a building

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Answer 1

Answer:

A work can be completed by 40 workers in 40 days.

Number of days required to complete the work by one worker =40×40=1600 mandays(days per worker)

Day----mandays----total mandays

10 400 400

20 350 750

30 300 1050

40 250 1300

50 200 1500

:

After 50 days:

1500 man-hrs have been accumulated, 15 men are on the job.

Then, 100 more man-days required

15d=100

∴ d=100/15=6.66

∴ Total no. of days required =50+6.66=56.66 days.

Hence, option C is correct.

Step-by-step explanation:

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Answer 2

Answer:

OK

THE ANSWER IS

6 MONTHS AND 21 DAYS

Step-by-step explanation:

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