It takes 484848 minutes for 777 people to paint 777 walls. How many minutes does it take 202020 people to paint 202020 walls?

Answer:Approximately 391 minutes taken by 20 people to paint 20 walls.                     Step-by-step explanation:Given : It takes 48 minutes for 7 people to paint 7 walls. To find : How many minutes does it take 20 people to paint 20 walls?Solution : 7 people to paint 7 walls in 48 minutes.So, 1 people to paint 7 walls in [tex]\frac{48}{7}[/tex] minutes.and 1 people to paint 1 walls in [tex]\frac{48}{7\times 7}[/tex] minutes.Now, We have to find minutes does it take 20 people to paint 20 walls.20 walls will be painted in [tex]\frac{48\times 20}{7\times 7}[/tex] minutes.20 people to paint 20 walls in [tex]\frac{48\times 20\times 20}{7\times 7}[/tex] minutes.i.e. [tex]\frac{48\times 20\times 20}{7\times 7}=\frac{19200}{49}=391.83[/tex]Therefore, Approximately 391 minutes taken by 20 people to paint 20 walls.