Question

an electrician completes 1/6 of a job in 2/3 hour. At this rate, how long does it take the electrician to complete the job?​

Answer 1

It takes the electrician 4 hours to complete the job

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

`(1)/(6)x = (2)/(3)`

Applying cross multiplication

`3x = 6*2`

`3x = 12`

`x = (12)/(3)`

`x = 4`

It takes the electrician 4 hours to complete the job