Question

a fish tank can hold 35 liters of water when filled to brim. it is 4/9 filled, if 2/5 of water is removed, how much more water must be added in order to fill the tank to brim?

Answer 1

Capacity = 35 liters

Find the amount of water in the tank:

Amount of water = = 4/9 x 35 = 140/9 liters

Find the amount of water that is removed:

Amount of water =  2/5 x 140/9 = 56/9 liters

Find the amount of water left in the tank:

Amount of water = 140/9 - 56/9 = 28/3 liters

Find the amount of water needed to fill the tank:

Amount of water = 35 - 28/3 = 77/3 = 25 2/3 liters

Answer: 25 2/3 liters of water must be added to fill it to the brim

Answer 2

25.67 litre of water must be added in order to fill the tank to the brim.

Step-by-step explanation:

Total capacity of the tank = 35 ltr

Water filled in the tank = $\frac{4}{9} \times 35$

                                      = 15.56 ltr

Water removed from the tank = $\frac{2}{5} \times 15.56$

                                                 = 6.224 ltr

Remaining water in the tank = 15.56 ltr - 6.224 ltr

                                              = 9.33 ltr

Capacity of water added to fill the tank

                 = Total capacity of water - remaining water in the tank

                 = 35 ltr - 9.33 ltr

                 = 25.66 ltr

Hence 25.67 litre of water must be added in order to fill the tank to the brim.

To learn more...

1. A fish tank can hold 45 litres of water when filled to the brim it is 4/9 filled if 2/5 of the water is removed how much more water must be added in order to fill the tank to the brim?

brainly.in/question/3388329

2. A fish tank can hold 45lt of water when filled to the brim. It is 4/9 filled if 2/5 of the water is removed, How much more water must be added in order to fill the tank to the brim?

brainly.in/question/3375108