Omar pour 2/3 cup of juice each morning for himself and 2 brothers. How many quarts of juice does he use in 30 days?

Does he pour 2/3 cups for everyone or total?

Everyone

If he pours 2/3 cups for everyone, that's 2/3*3 = 6/3 = 2

Then he does that for 30 days. That's 2cups*30 = 60 cups

1 quarter = 1/4

60 / 0,25 = 240

240 quarts

In total

If he pours 2/3 cups in total, that's 2/3 cups * 30 = 60/3 = 20 cups

1 quarter = 1/4

20 / 0,25 = 80

80 quarts

So there are three people who drink juice each morning, each drinking 2/3 cups, how man cups do you think will be drank in one day?