Let's convert the fractions to the same denominator


this means that when 190 liters, or 19/30 of the water was drawn off, there was 1/6 left.
let's create an equation and solve for x. we know that 190 is equal to 19/30 of the the tank. what about 1/30? we nee to divide each side by 19 to find out.
190/10 would be 19. this means that 1/30 of the tank is 19 liters.
to find the full tank, or 30/30 of the tank, multiply 19 by by 30, to get 570.
the full capacity of the tank is 570 liters
hope this helped!
p.s. can i have brainliest?