Question

Jamal works as an electrician’s apprentice. He rewired 4 electrical outlets in 1 1/2 hours. If he works at the same pace for 7.5 hours, how many outlets will he rewir?

Answer 1

20 outlets, I can’t really explain but I’ll try to.

Answer 2

Answer: 20 outlets.

Explanation:

We know that Jamal rewired 4 electrical outlets in 1 1/2 hours. This time can be rewritten as a decimal:

`(1+(1)/(2))hours=1.5hours`

Then, if he works at the same pace for 7.5 hours you can calculate the number of outlets that he will rewire with:

`(1.5)/(4)=(7.5)/(x)`

Being "x" the number of outlets that Jamal will rewire.

Finally, you have to solve for "x":

`(1.5)/(4)=(7.5)/(x)\\\\x((1.5)/(4))=7.5\\\\x=(7.5)((4)/(1.5))\\\\x=20`

He will rewire 20 outlets.