Answer:
It takes the electrician 4 hours to complete the job
Step-by-step explanation:
This question can be solved using a rule of three.
In 2/3 of an hour, he completes a sixth of a job. So how many hours does it take for him to complete the job(which is 100% = 6/6 = 1)?
2/3 hour - 1/6 of the job
x hours - 1 of the job
[tex]\frac{1}{6}x = \frac{2}{3}[/tex]
Applying cross multiplication
[tex]3x = 6*2[/tex]
[tex]3x = 12[/tex]
[tex]x = \frac{12}{3}[/tex]
[tex]x = 4[/tex]
It takes the electrician 4 hours to complete the job
