Respuesta :
Answer: 6weeks
Step-by-step explanation:
If it takes 4 men, 9 weeks to build a barn.
It will take a man; 4 x 9weeks =36 weeks to make a barn
If it takes a man 36weeks to make a barn, it will take 4men + 2 men i.e 6men = 36/6
6 weeks to make a barn
The long will the job take:
- If it takes 4 men, 9 weeks to build a barn.
- It will take a man; 4 x 9weeks =36 weeks to make a barn
- If it takes a man 36weeks to make a barn, it will take 4men + 2 men i.e 6men = 36/6
Thus,by adding two more men it will take 6 weeks to make a barn.
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