Answer:
Option C.
Step-by-step explanation:
Two beauticians Lydia and Jackie are working on your hair.
Lydia takes the time to complete the work = 2 hours
Per hour work done by Lydia = 1/2
Jackie complete the work = 1 hour
In one hour total work done by both Jackie and Lydia together = [tex]1+\frac{1}{2}=1\frac{1}{2}or \frac{3}{2}[/tex]
therefore, time taken by both to complete the work will be = [tex]\frac{1}{\frac{3}{2} }[/tex] = [tex]\frac{2}{3}[/tex]
Option C. two thirds is the correct option.
