If 36 men can build a wall 140m long in 21 days, how many men are required to build a 50m long wall in 18 days?
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it will takes 7.5 day.
36 worker divide into 2= 18 workers.
21 days divide 2 = 10.5 day
140 m divIde 2 = 70 m ( meaning with the 18 manpower can built a 70m wall in 10 days and half.
i just a take a simple calculation . 70 meter divide 10.5 days = 6.666 meter / day
50 meter divide 6.666meter/day = 7.5 ( numbers of the days )
50 m wall built in 7.5 days with a manpower of 18 person.
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