1.

If 30 men can do a job in 30 days, find what part of the job can be completed by 1 man in 1 day.1. \(\frac{1}{30}\)2. \(\frac{1}{900}\)3. \(\frac{1}{90}\)4. \(\frac{1}{60}\)

Answer» Correct Answer - Option 2 : \(\frac{1}{900}\)

Given:

30 men can do a work in 30 days

Concept used:

If x person can do a work in y days then 1 person can do the work in xy days.

If a person can complete a job in z days then he can do 1/z work in a day.

Calculation: 

As 30 men can do a job in 30 days

⇒ 1 man can do the job in 30 × 30 = 900 days

Work done by 1 man in 1 days = 1/900

∴ 1 man can complete 1/900 work in 1 day



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