Question

12 roofers did a job in 65 1/3 hrs, how long woukd it take 29 roofers?

Answer 1

It will take [/tex]27\frac{1}{29} \text{hr}[/tex] or 27.034 hr to complete the job.

Explanation:

Consider the provided information,

12 roofers did a job in 65 1/3 hrs,

That means 1 roofer can do the same job in:

1 roofers will complete the work in
`=65(1)/(3)\ * 12 \text{hr}`

`=(196)/(3)\ * 12 \text{hr}`

`=784 \text{hr}`

Now we need to find time taken by 29 roofers.

29 roofers will complete the work in
`=(784)/(29) \text{hr}`

`=27(1)/(29) \text{hr}`

Hence, it will take
`27(1)/(29) \text{hr}` or 27.034 hr to complete the job.