Question

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

Answer 1

Answer:

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

Step-by-step 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 $=65\frac{1}{3}\ \times 12 \text{hr}$

$=\frac{196}{3}\ \times 12 \text{hr}$

$=784 \text{hr}$

Now we need to find time taken by 29 roofers.

29 roofers will complete the work in $=\frac{784}{29} \text{hr}$

$=27\frac{1}{29} \text{hr}$

Hence, it will take $27\frac{1}{29} \text{hr}$ or 27.034 hr to complete the job.