three men can complete a certain work in 7days after 1 days work some more men joined the group and completed the remaining work in 3 days. how many men joined 3 men after one days work
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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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