A wall can be built by 6 men working 8 hours per day in 5 days. How many days will it take 4 men to build the same wall if they worked only 5 hours per day??

Respuesta :

Total number of working hours = 6x8x5 = 240 hours 


Let x be the number of days required 

240 = 4(5)(x) 

x = 12 days

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