Answer:
It would take them 6 minutes to paint the wall and 12 to paint the other half : 18 minutes
Step-by-step explanation:
Say that the student who can paint a wall in 12 minutes is painting half of the wall it would take them 6 minutes
As the other student who can paint the same wall in 24 minutes also paints half of a wall it would take that person 12 minutes.
