Math, asked by jseema805, 1 year ago

Three men can complete a certain work in 7 days after 1 days work somemore men joined and completed the remaining work in 3 days .How many men joined the three men after one day work

Answers

Answered by amitnrw
5

Given :  Three men can complete a certain work in 7 days

after 1 days work some more men joined and completed the remaining work in 3 days .

To Find :  How many men joined the three men after one day work

Solution:

Let say work done by 1 man  in 1 day  =  x

Three men can complete a certain work in 7 days = 3 * 7 * x   = 21x

Total Work = 21 x

Work done in 1st day  = 1 * 3 * x = 3x

remaining work = 21x - 3x = 18x

Total men = 18x/ ( 3 * x)

= 6

More joined = 6 - 3 = 3

3 Men joined  after one day work

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