Jun 10, 2018

2. if 20 men can complete a job in 4 days. How many men

2. if 20 men can complete a job in 4 days. How many men will be required to finish the work in 40 days?
Solution:

Suppose x men will be required to complete the job in 40 days

∵ To complete a job in 4 days the required men are 20 .

∴ To complete the job in 1 day the required men are 20x4 .

( explanation: in 1 day more men will be needed to complete the same job, therefore for more men multiplication has been done.)

∴ To complete the job in 40 days the required men are (20x4)/40 .

explanation:lesser number of men will be needed to complete the job in 40 days in comparison to one day. Therefore division has been by 40

= 80/40

= 2 men Ans.

2. if 20 men can complete a job in 4 days. How many men

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