Levan can finish a job in 5 hours while Rommel can do the same job in 4 hours. Working together, how many hours can they finish the job?

Answer 1

Levan can finish a job in 5 hours while Rommel can do the same job in 4 hours. Working together, how many hours can they finish the job?

Hello Moila,

These problems are the easiest to set up:

Levan + Rommel = Working together

1 job.............1 job.................1job

——— + ——— = ———

5hrs..............4hrs..................Xhrs

Now solve for x in the expression:

1/5 + 1/4 = 1/x

4/20 + 5/20 = 1/x

9/20 = 1/x

x = 20/9

x = 2.22 hrs

Answer: It takes Levan and Rommel 2.22 hours working together to finish the job.

_{LET'S GO BRANDON!}