One student can paint a wall in 12 minutes. Another student can paint the same wall in 24 minutes. Working together, how long will it take for them to paint the wall?

Student 1 can paint 1/12 of the wall per minute.

Student 2 can paint 1/24 of the wall per minute.

1/12t + 1/24t = 1 where t represents time in minutes.

3/24t=1

Divide both sides by 3/24

t=24/3

t=8

Final answer: 8 minutes